13 Best Aquarium Chillers

Are you worried about the heat in your tank?

Do you want to make sure that your fish get the best possible environment?

If yes, you have landed at the right place.

I remember being worried about my fish when I noticed the high temperature of the water in my aquarium.

Thus, I decided to find out the remedy to this problem.

Let me elaborate on the best possible solutions and more.

13 Best Aquarium Chillers

ProductTank capacity (gallons)Dimensions (inches) 
Teco TANK TK-500 Aquarium Chiller13012.2 x 12.2 x 16.4
Coralife Energy Savers ACL36060 Chiller5514.5 x 13 x 16
EcoPlus Chiller13224.5 x 20.5 x 20
JBJ Aquarium Arctica Titanium Chiller13013 x 19 x 20
Deep Blue Professional ADB50060 Kryos Advanced Aquatic Chiller200-30013.25 x 15.7 x 17.75

Aquarium chillers detailed product reviews

1. Teco TANK TK-500 Aquarium Chiller


 Key Facts
  • Brand: Teco US
  • Weight: 36.4 pounds
  • Motor: 1/6 HP
  • Recommended flow rate: 105 GPH
  • Dimensions: 12.2 x 12.2 x 16.4 inches
  • Warranty: 2 years, limited
  • Suitable for aquarium with a capacity of up to 130 gallons

Equipped with a built-in heater, magnetically-affixed filter screen and a rotatable top exhaust conveyer, this aquarium chiller leaves little to desire.

This unit is capable of offering optimal performance at all times.

There is more;

You would not have to worry about any noise distracting you as this aquarium chiller operates quietly.


  • The unit is quite high-quality with excellent finish and fit. Thus, it is devoid of any sharp edges ensuring that no vibrations or rattles occur.
  • Offers excellent performance owing to the rotatable top exhaust conveyer that it is provided with which allows you to direct the heat exchange and air flow away from the unit
  • Equipped with an intuitive design that increases the transfer of heat out of the water, thereby increasing the efficiency the unit offers.
  • The hot air can be removed from the enclosed cabinet via the exhaust conveyer whose opening can be extended via the modular conveyor extension pieces.
  • The maintenance is quite easy as the filter screen can easily be removed.
  • It is provided with a digital thermostat that detects temperature accurately, via the water temperature probe.
  • It is easy to read the temperature settings owing to the red display
  • The unit has protection against corrosion making it long-lasting


  • It is a tad bit expensive

2. Coralife Energy Savers ACL36060 Chiller


 Key Facts
  • Brand: Coralife
  • Weight: 1 pound
  • Motor: 1/10 HP
  • Dimensions: 14.5 x 13 x 16 inches
  • Warranty: 1 year
  • Suitable for aquariums with a capacity of up to 55 gallons

Coralife enjoys a profound reputation in the world of aquarium care, and this chiller is no different.

Suitable for both freshwater and marine aquariums, the unit is provided with an automatic control system that is responsible for maintaining the set temperature.


It is provided with quite a lot of appealing features that make it worth purchasing.


  • Easy installation as programming is done through a single step via the digital LED display.
  • The titanium heat exchanger is quite efficient as it transfers heat from the tank to the room. You would not have to worry about it rusting.
  • Provided with a reusable air filter that you can easily remove for cleaning
  • The hoses can easily be routed owing to the adjustable barbed hose connections that it is provided with.


  • Only one year of warranty is offered
  • The instructions do not specify the tubing size requirements of the unit.

3. EcoPlus Chiller


 Key Facts
  • Brand: EcoPlus
  • Motor: 0.5 HP
  • Recommended pump size: 317 to 793 GPH
  • Dimension: 24.5 x 20.5 x 20 inches
  • Suitable for tanks with a capacity of up to 132 gallons

Capable of offering high-quality and efficient performance, the EcoPlus chillers are suitable for reservoirs, both saltwater and freshwater tanks and hydroponic systems.

The unit is provided with a reliable titanium heat exchanger that ensures that you get the performance you require.

To top it off:

It is corrosion resistant as well.


  • The unit is quite durable owing to the anti-corrosive titanium heat exchanger that forms part of it.
  • Provided with protection against overload
  • Equipped with digital LCD control that makes use easy
  • The unit is capable of remembering the last setting in its internal memory. In case of a power outage, it will automatically reset to that setting.


  • The unit can be quite distracting owing to the loud noise it produces
  • The thermostat is inaccurate at times, making it somewhat unreliable with regards to temperature detection.

4. JBJ Aquarium Arctica Titanium Chiller


 Key Facts
  • Brand: JBJ
  • Weight: 41 pounds
  • Motor: 1/10 HP
  • Recommended water pump: 160-295 GPH
  • Dimension: 13 x 19 x 20 inches
  • Warranty: 2 year
  • Suitable for tanks with a capacity of up to 130 gallons

If you want a technologically advanced chiller that is easy to use, this one will not let you down.

It is provided with quite a lot of impressive features which enable it to offer optimal performance.

The best thing, it does not produce a lot of noise, and thus you do not have to worry about any distractions owing to it.


  • Provided with an intuitive titanium coil design that ensures maximum contact thereby enhancing the chilling efficiency of the unit
  • Since the condenser is located on the front of the chiller, the cool air is drawn from the front while the warm air goes out of the back
  • Equipped with a built-in thermostat and controller which ensures that your desired temperature is maintained accurately
  • The bright light LCD is easy to read at all times


  • The customer support service is not very helpful
  • The chiller can be at times slow in registering the increase in temperature

5. Deep Blue Professional ADB50060 Kryos Advanced Aquatic Chiller


 Key Facts
  • Brand: Deep Blue Professional
  • Weight: 0.32 ounces
  • Motor: 0.5 HP
  • Recommended water pump: 750-1500 GPH
  • Dimension: 13.25 x 15.7 x 17.75 inches
  • Suitable for tanks with a capacity of up to 200-310 gallons

The aquarium chillers in the line of Kryos are all quite reliable in terms of performance, and this is no exception.

Furthermore, these units are tested individually before shipment to ensure that users get the desired operation.

This unit is capable of offering you quite an impressive performance as it provides you with complete control of the aquatic environment.


  • It is quite easy to change the settings of the unit via the front touch panel controls ensuring that beginners can also use the chiller
  • You get to decide whether you want extreme chilling or maximum efficiency
  • Provided with a bright digital display that lets you know the exact temperature of the water of the tank.
  • The compressor and titanium heat exchanger maintain high standards of quality which ensures that you get the results you want
  • It has a handle which makes it easier for you to move the unit around


  • It is not very well-known, and there is a shortage of reviews of the product

6. Hamilton Technology Aqua Euro Max Aquarium Chiller


 Key Facts
  • Brand: Hamilton Technology
  • Weight: 18 pounds
  • Motor: 1/13 HP
  • Recommended water pumping: 160-295 GPH
  • Dimension: 14 x 10 x 14 inches
  • Suitable for tanks with a capacity of up to 50 gallons

When it comes to performance and efficiency, this aquarium chiller by Hamilton will not let you down.

Suitable for both saltwater and freshwater tanks, the unit has quite a lot of appealing features.


The chilling capacity of the chiller is 50 gallons at ten ºF below room temperature and 30 Gallons at 20 ºF below room temperature.


  • Provided with a compact design which makes it easier for you to handle it
  • The Digital LED temperature control display that forms part of it makes programming quite feasible
  • Equipped with a corrosion-resistant titanium heat exchanger that offers efficient results
  • The unit is provided with the feature of built-in memory recall which ensures that in case of a power outage, the last settings are maintained
  • A reliable compressor forms part of it which uses ozone friendly refrigerant and anti-freezing system to ensure that the heat exchanger is not damaged owing to freezing.
  • Features a heavy-duty condenser that gets rid of the captured heat quickly for effective water cooling
  • It is also energy efficient
  • Cleaning is easy as the front condenser cover is removable


  • While the noise produced by the unit is not very loud, it is still audible which can be problematic for some

7. Hydrofarm Active Aqua Chiller


 Key Facts
  • Brand: Hydrofarm
  • Weight: 37 pounds
  • Motor: 1/10 HP
  • Recommended water pump: 66-317 GPH
  • Dimension: 15 x 21 x 21 inches
  • Suitable for tanks with a capacity of up to 250 gallons

This aquarium chiller is not only effective in terms of performance but is environment-friendly as well.

It is capable of chilling about 40 gallons by 15 degrees Fahrenheit and 13 gallons by 30 degrees Fahrenheit.

To top it off:

It has a large refrigeration capacity which makes it quite an appealing option.


  • The unit is constructed from anti-corrosive titanium which ensures that it is durable and you can use it for saltwater and freshwater tanks with ease.
  • While the refrigeration capacity is impressive, the design of the chiller is compact, making sure that it would not take up a lot of space
  • Despite offering powerful performance, it provides quiet operation
  • It is equipped with an LCD which makes it quite easy to use it
  • It is eco-friendly as it is Freon-free.
  • In case of a power surge, the unit will turn off automatically, ensuring that no damage occurs


  • Quite a lot of heat comes out from the back of it which needs to be handled
  • The temperature setting has fluctuation by 2 degrees.

8. IceProbe Thermoelectric Aquarium Chiller


 Key Facts
  • Brand: Nova
  • Weight: 3.2 pounds
  • Dimension: 9 x 0.5 x 8 inches
  • Warranty: 1 year
  • Suitable for tanks with a capacity of up to 10 gallons

Preferred by quite a lot of enthusiasts, this aquarium chiller offers a compelling performance.

It has quite a lot of features that make it a desirable option.

The unit is capable of providing continuous chilling as it is plugged into a power source.

There is no switch for turning it on or off.


  • It is quite suitable for cooling small aquariums and does not take up a lot of space
  • The unit does not produce a lot of noise ensuring that no distractions are caused
  • It does not require a water pump to perform its function
  • It is quite reasonably priced and offers a reliable performance


  • The capacity is quite limited, and thus you cannot use it to cool larger tanks
  • The unit looks somewhat unattractive as it suspends over the aquarium

9. TradeWind Chillers Drop in Chiller


 Key Facts
  • Brand: TradeWind chillers
  • Weight: 45 lbs.
  • Motor: ¼ HP
  • Dimension: 14.5 X 11.5 X 10.5 inches
  • Warranty: 5 year
  • Suitable for tanks with a capacity of up to 165 Gallons

If you are looking for an affordable aquarium chiller which offers impressive functionality, this product might just be right for you.

Suitable for both, freshwater and saltwater aquariums, the chiller has quite a lot to offer.

To top it off:

It does not produce loud noises which make sure that you are not disturbed owing to it.


  • It is provided with a sleek design which ensures that you can flaunt it with style. Placement is not an issue.
  • It makes use of Copeland condensing units, which enable it to provide you with optimal performance.
  • The unit is equipped with a built-in sensor which allows it to detect pump failure. The chiller then shuts off automatically, thereby preventing further damage.
  • Durable with quiet operation


  • The installation of the chiller can be complicated for many and thus the services of a professional need to be acquired.

10. Active Aqua AACH100 Water Chiller


 Key Facts
  • Brand: Active Aqua
  • Weight: 69 pounds
  • Motor: 1HP
  • Recommended water pump: 264 to 650 GPH
  • Dimension: 20.5 x 18.9 x 15.8 inches
  • Can be used in tanks with a capacity of up to 80 gallons

This is quite a suitable aquarium chiller for all the environment lovers out there as it is Freon-free making it safe for the environment.

The chiller is suitable for both freshwater and saltwater tanks, and you can be sure that it would not let you down in terms of performance.


  • Environment-friendly as it is Freon free and uses the R134 refrigerant which is safe as well.
  • It is quite easy to use.
  • It has quite a large refrigeration capacity which makes it suitable for most of the aquariums in use in the current times
  • It is provided with anti-corrosive pure titanium for the evaporator which makes it durable and safe for the fish
  • The microcomputer control system that forms part of the unit makes it quite easy for you to operate it. You would not have to consult the manual time and again.


  • The construction has room for improvement

11. Chill Solutions 11415 Thermoelectric Aquarium Chiller


 Key Facts
  • Brand: Chill Solutions
  • Weight: 4.4 pounds
  • Dimension: 10 x 8 x 8 inches
  • Suitable for tanks with a capacity of up to 30 gallons

This is a high-tech nano chiller which is capable of keeping the water temperature of your tank stable even if the room temperature fluctuates.

In addition to this, it is provided with a built-in thermostat that you can set anywhere between 45 degrees Fahrenheit to 90 degrees Fahrenheit.

This aquarium chiller is suitable for nano tanks and hydroponic setups as well.


  • It is quite easy to set up considering it comes assembled along with the AC adapter.
  • It is highly durable as it is provided with high-quality HDPE base.
  • The thermostat is quite reliable and accurate, ensuring that you get the results you are looking for.
  • It is among the quietest chillers you will find on the market.


  • The unit does not come with tubing, and thus you have to purchase them separately.

12. BOYU iPettie Aquarium Cooling System Fan Chiller + AC Adapter


 Key Facts
  • Brand: BOYU
  • Weight: 0.4 kg
  • Power: 8W
  • Dimension: 10.5 x 1.4 x 3.5 inches
  • Suitable for tanks with a capacity of up to 40 gallons

This is among the most popular aquarium chillers available on the market.

Quite a lot of factors put up a compelling case in favor of this unit.

Installing it is quite simple, and it is provided with a clamp mounting bracket that can fit over the walls of your aquarium up to 15mm thick.


  • The unit is reassembled along with the AC adapter. Thus, installation is not something you are likely to have trouble with.
  • You have the option of deciding the number of fans you want to use from two to six, thereby ensuring that you get your desired results.
  • The cooling speed is fast, and the unit is quite durable as well.
  • It is quite a cost-effective option as not only is it reasonably priced but also consumed less power. Thus, you would not find your energy bills hitting the roof.


  • The unit is not equipped with a thermostat and can lower the temperature merely by a couple of degrees.

13. Petzilla Aquarium Chiller


 Key Facts
  • Brand: Petzilla
  • Weight: 1.19 pounds
  • Dimension: 8 x 2 x 6.3 inches
  • Warranty: 1 year
  • One fan chiller is adequate for a tank with a capacity of up to 10 gallons
  • Fit for tanks with a wall thickness of fewer than 0.5 inches

If you are looking for an affordable solution to the problem of a hot tank, this is one that would not let you down.

Offering you two cooling speeds, this unit ensures that you get the results you are looking for.

This chiller is capable of lowering the temperature by up to 4 degrees Celsius .


  • You can select the number of fans from one to five based on your requirements. One fan is suitable for 10 gallons of the tank while two fans are required for 20 gallons and so on. Thus, you can opt for what you need with ease.
  • Setting it up is easy as it comes preassembled. Furthermore, the clamp is sturdy and adjustable.
  • The fans are potent, and the unit offers effective cooling, lowering the temperature by four Celsius degrees.


  • The unit is quite loud, with the noise increasing depending on the number of fans you use. If the tank is in your room, this can be quite a problem.

What is An Aquarium Chiller and Why Would I Need it?

Your aquatic life requires a perfect environment for flourishing in the aquarium.

You would not want your negligence to be detrimental to the fish.

Aquarium chillers are meant to lower the temperature of water in the tank to the desired levels that are suitable for the fish.


Aquariums tend to overheating.

Fish and other aquatic life are cold-blooded. This implies that they do not have autonomous body control.

During summers, when the weather gets too hot, you switch on the AC for your comfort.

On the other hand, aquatic life requires AC for their survival rather than comfort.

Fish cannot withstand high temperature.

Therefore, if you have an aquarium and want to make sure that you provide your precious fish with the best possible care, you need to get your hands on an aquarium chiller.

Why Do Aquariums Get Warm?

Various factors can contribute to the increase in temperature of the water in the tank.


It is quite common to use bright lights or lights with special effects in aquariums.

Such bulbs can increase temperature significantly.

Fluorescent light bulbs are cooler compared to the incandescent bulbs.


It is the LED lights which are the coolest.

Water Pump

Large water pumps emit more heat into the tank water.


The larger the water pumps, the more heat will be emitted by it.

Climatic Conditions

This is not something that many tend to think about.

However, it is true. The climate of your area also influences the temperature of tank water.

For instance,

If you reside in a warm area, the atmosphere within the house will be influenced, and this will inadvertently affect the tank.

How Does An Aquarium Chiller Work?

The function of aquarium chillers is to reduce the temperature of the water.

It does so by removing the heat from the water and transferring it to somewhere else.

As the heat is removed, this process leads to the cooling down of water, thereby leading to a drop in temperature.

Keep in mind;

Heat moves from a warm source to a colder one, and this is the principal that chillers use.

Four components are present in a chiller, namely

  • Heat exchanger or evaporator
  • Condenser Coil
  • Compressor
  • Expansion valve

The Cooling Process

The process of cooling commences in the heat exchanger.

Evaporation of the liquid refrigerant occurs in the coils as heat is absorbed from the aquarium water that circulates through the exchanger.

A critical point; heat exchangers made from titanium are corrosion-resistant. Thus, they can safely be used in saltwater tanks.

The exchanger transfers the heat into the coils.

The compressor draws out the refrigerant vapor from the evaporator.

The refrigerant vapor is then pumped to the condenser.

This leads to an increase in its pressure and temperature.

Condensation of the refrigerant occurs in the condenser tubes, thus causing the transfer of heat to the air.

The fan in the chiller then blows air across the hot condenser coil, thereby removing heat from the refrigerant.

The liquid refrigerant, which is now high in pressure passes from the condenser through the expansion valve.

The pressure and temperature of the refrigerant are thus reduced before it enters the evaporator.

Once again;

The refrigerant flows over the chilled coils leading to absorption of more heat, thereby completing the cycle.

Drop-in Chillers

Drop-in chillers follow the same mechanism as flow-through chillers. The difference is that the titanium heat exchanger is located in the filter sump.

These chillers are designed to be used in aquaculture and for research and commercial purposes.

They are quite large and need a lot of space where the titanium exchanger is routed, and the refrigerant can be hosed to the sump.

Therefore, they are usually not used for aquariums

Inline Chillers

On the other hand, purpose-built aquariums are small, easy to install, and operate quietly.

They can thus be used in a home with ease.

The chillers are usually provided with a thermostat which measures the temperature of water in the tank.

For setting the temperature, you merely have to enter the temperature you want to be maintained.

The chiller will then automatically operate and stop according to this set temperature.

What Should I Consider while Buying An Aquarium Chiller?


Your fish is at your mercy. It is your responsibility to ensure that they get an ideal environment to thrive.

Therefore, it is vital to make sure that you buy the right chiller for your tank.

The Flow Rate

It is vital to ensure that you buy the right model that has the best flow rate.

The flow rate plays a pivotal role in determining how well the chiller can maintain the temperature of the tank.

Thus, you need to buy a chiller that has a suitable flow rate. The too fast or too slow pace will affect the performance.

Consumption of Energy

You would not want to cause your energy bills to spiral out of control.

Chillers use electricity for their operation.

Therefore, it is natural to be worried about their energy consumption.

Most chillers are designed to consume less energy to ensure that they can maintain the temperature of water within the set range.

A vital tip;

Compare different models and opt for the one that consumes less energy.

The Capacity of The Tank

The flow rate is strongly associated with the size of the aquarium.

It is advisable to get a chiller that has a suitable flow rate according to the capacity of the tank.

For instance, it would not do you any good if you use a chiller that is designed for small aquariums on large tanks.

Manufacturers usually specify the capacity of the tank that the chiller is suitable for.


You would not want to buy something that would have to be replaced within a short span.

Therefore, you will need to make sure that the construction material of the chiller is durable.

Usually, chillers are manufactured with a combination of metal and plastic.


You want the chiller to last for a long time, and thus, quality is essential.

Refrigerant Liquid

More people are concerned about the environment in the current times.

This is why they look for environment-friendly refrigerants.

Brands have taken note of this and are making chillers that are safe for the environment.

Take a look at the refrigerant used in your chiller to make sure that it is not harmful to the environment.


Think about it; would you want a chiller that makes loud noises whenever it operates?

What if the tank is in your room?

No one likes to be distracted all the time owing to the chiller.

Therefore, make sure that you get a chiller which makes minimal noise.

Is Water Flow Necessary for Aquarium Chiller?

Yes. Water flow is highly essential for the optimal functioning of the chiller.

It is the water pump that pushes the warm water of the tank through the chiller, passing it over the heat exchanger and getting it back to the tank.

The cooling process is gradual.

Understand this; the water needs to be circulated through the chiller continuously if a stable temperature is to be maintained in the tank.

If the flow of the water is too fast, the chiller will not get the opportunity of cooling it down efficiently.

On the other hand, a slow flow will cause the lines to freeze, thereby damaging the coils and compressor.

Ideally, you can use a separate circulation pump for moving the water through the chiller.

Indeed, some aquarists use filter pump for moving the water through the filter and chiller.

Keep in mind; irrespective of how your chiller is set, the right water flow is essential.

Manufacturers of chillers usually specify the recommended flow rate of the unit.

This will help you in making sure that the right pump is selected.

There is more;

The flow rate specified on pumps usually does not take the pressure needed to push the water through a filter and height into account.

The flow rate of pumps decreases with the increase in the head.

Reliable brands usually offer a chart where you can find the flow rate against the water height or head.

Therefore, you need to make sure that your chiller matches the flow rate that your pump offers and vice versa.

The low flow rate will affect the function of the chiller.

Is it Necessary for A Chiller to Have Thermostat and Temperature Control?

Yes. It is always advisable to opt for chillers that are equipped with a thermostat.

You can also purchase them separately, but you will need a thermostat to check the temperature of the water.

Most chillers available on the market today are provided with thermostats.

You will find some chillers that cannot operate without temperature controllers.

These chillers are not equipped with an on/off button.

The chiller is then controlled via the temperature controller.

Some units are integrated with controllers and thus can operate automatically.

First of all;

Set your desired temperature, which is the temperature you want to be maintained in your tank.

When the temperature exceeds your set temperature, the chiller automatically lowers it down.

The extent of the temperature lowered depends on the cooling power of the unit, its adjust-ability, and settings.

Those units without a temperature controller have to be turned off and on manually.


If you do not have a thermostat, you have no way of finding out if the chiller is performing its function correctly.

How to Install The Chiller?

This depends on the type of chiller you buy.

Mostly, there are two types of chillers in the market, drop-in and inline.

The heat exchanger coil in drop-in chiller has to be placed in the sump for operating.

On the other hand, inline chillers are different.

They require the water to be pushed through them for the cooling following which the water is circulated back into the tank.

These chillers come with a manual which would guide you regarding the whole process of installation.

Rarely, you might require professional help for the purpose.

Where Should I Place The Aquarium Chiller?

Aquarium chillers work by extracting heat the water, releasing it into the air.

Therefore, placing them in the aquarium cabinet is not a very smart idea.

Think about it;

If you place the chiller in the cabinet, the chiller will dump heat in it, and the aquarium can likely reheat again.

Chillers are provided with a fan for blowing the air across the hot condenser coil so that heat can be removed from the refrigerant.

It is advisable to place aquarium chillers in a place where there is sufficient airflow.

This will make sure that the expelled heat is carried away from the tank.

If you place the chiller in a place where it cannot release heat, it will lose its effectiveness.

To top it off, energy would also be wasted.

Therefore, make sure that if you are keeping the chiller in an enclosed space, it has adequate airflow for carrying the heat away.

It is recommended to leave about 12 to 18 inches of space around the unit.

How Should I Clean The Aquarium Chiller?

First of all; disconnect the connections of water pipe to the chiller. The same has to be done for electrical connections.

If you have a freshwater tank, cleaning the chiller would be a breeze.

Here’s the thing; rinse the chiller with clean water and your work is done.

On the other hand;

If the chiller is used with saltwater, it might contain some calcium deposits.

The deposits have to be removed. You can use vinegar for the purpose.

Can All Chillers be Used with All Types of Aquariums?

No. You cannot use any chiller with your tank without paying heed to specifications.

Wall thickness

Some chillers are provided with adjustable clamps that allow them to be compatible with multiple but not all tanks.

Consider this;

If the clamp is designed to adjust to 1-inch thickness of the aquarium wall, it would not fit with a tank whose walls are 1.5 inches thick.

However, some chillers have cooling probes which are not affected by the thickness of the wall of the tank as they are suspended above the tank.


The chiller needs to be capable of cooling all the water in your tank.

If you use a 50-gallon chiller in a tank with a capacity of 100 gallons, the chiller will cool it poorly.


You cannot use a chiller designed for tanks with 100 gallon capacity for an aquarium with a capacity of 10 gallons.

This will cause the wastage of energy.

In addition to this, disturbances will occur in the water owing to it, compromising the quality of life for the fish.

Can I Use A Thermoelectric Cooler Instead of A Chiller?

Thermoelectric coolers refer to solid state heat pumps.

They use the Peltier effect for their operation.

The Peltier effect comes into play when the DC flows through two conductors that are different.

The heat moves from one side of the ceramic plate to another when current passes through it.

Thus, a temperature difference is created between the plates.

When these coolers are used in aquariums, they operate by absorbing heat from the tank via a probe that sits in the water.

This heat is then transferred to the heat sink present above the water.

The heat is drawn away from the sink via a computer fan.

These coolers have a compact design which works great for aquarium setting.

However, the installation process is complicated.

You will need to drill through the tank or suspend the probe into the water by mounting it above the tank.

The thing is;

These chillers are effective for quite small tanks. Their maximum capacity is 10 gallons.

Furthermore, if the tank has a lot of sources of heat such as reef lighting or pumps, their performance is not satisfactory.

Other Related Questions

What can I do to lower down the temperature in my aquarium?

It can be quite alarming to find that the water temperature has risen significantly in your tank.

However, you can deal with this situation with some simple steps.

  • Turn off the lights of the tank
  • Ensure that the tank is not exposed to direct sunlight.
  • Remove the lid from the tank to let the heat out.
  • Place a fan nearby such that it blows directly into the tank across the water.
  • Float icepacks in the tank.

Do axolotls require a chiller?

Yes. Axolotls may require a chiller in warm climates.

The water needs to be kept within the optimum temperature range for them,

The suitable range for axolotls is from 60 to 64F.

Remember; they also need to be kept away from direct sunlight.

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