Best Aquarium Water Chiller

Best Aquarium Water Chiller in 2024

Starting aquarists find out about a lot of things they might need to start with their brand-new aquarium keeping experiences. A great fish tank heating unit for exotic fish is possibly required. You’ll most likely need a filter. You need a sump. You need a skimmer, some internet, and the wonderful substrates that embellish as well as give concealing spots for some fish. Yet among the less-common possible needs might well be a chiller. Listed below, you’ll discover just how finest to use them, and also uncover our leading selections for the Best Aquarium Water Chiller.


The first inquiry I had when I began entering into fish maintaining was “what the hell is an aquarium refrigerator?” I would certainly heard the term before, but what was this thing and also why would I need one?

I uncovered that a fish tank colder is a basically a little refrigerator– or sometimes a follower or “ac system”– that is set up inline or by drop-in.

This refrigerator device has an outside purification system and utilizes that to cool down the water that passes through it.

When the chiller is paired with a thermostat, the chiller can really prevent the aquarium from obtaining also warm, which is so vital for maintaining cold water fish healthy and balanced.


If you maintain fish that require a specific temperature level or cool water in their container with higher liquified oxygen, keeping the water cool enough for them is necessary.

The refrigerator will certainly assist you do that by controling the temperature levels, specifically if you live in a cozy environment or have a tendency to maintain your residence on the warmer side.


Not every fish tank requires a refrigerator, but there are some excellent factors to consider obtaining one. Right here are a few of the best ones to consider.


If you live somewhere that summer warmth gets the very best of you, opportunities are, the temperature levels of the water will certainly get the best of your fish, also.

As well as if your temperature changes often– like it carries out in areas like Chicago as well as Toledo, Ohio– you might likewise intend to think about a refrigerator, as they can help keep the temperature in your container at a consistent level.


If you live someplace where cooling is optional since it’s cold all year, you might or might not want a refrigerator. If, nevertheless, you resemble some folks I understand who actually favor getting on the cozy side, your fish could desire a break from the heat that a refrigerator can offer.

The area temperature level of your home can considerably influence the temperature of the water for your fish, so if “warm” is your comfortable spot, you may wish to order a thermometer as well as check to see to it that your fish agree with your lack of A/C usage.


An additional point that might help you decide on whether to order a fish tank refrigerator is where you keep the tank.

If the fish stay in water that gets sunshine from the window, you could be slowly cooking your pals with UV light.


Or, if that fish tank is located under lights of any kind of kind, if you use pumps, or other electrical equipment to keep water flowing, gurgling or otherwise altered, you ought to additionally take into consideration an aquarium refrigerator.

The chiller can assist regulate temperature levels that are unnaturally increased by these devices and also devices.


Whether you’re working with a deep sea fish tank, cold-blooded fish with huge water needs, or just attempting to keep the goldfish alive longer, the appropriate aquarium chiller can make all the distinction.

So, right here are a couple of things to remember as you go shopping.


Prior to you buy anything, constantly ensure you’re getting the most effective fish tank chiller for the sort of tank you have. Whether that’s a freshwater 200-gallon container for koi or a 20-gallon saltwater aquarium for your youngster’s very first firefish, the incorrect chiller can get gummed up.

Usually speaking, a lot of fish tank refrigerators will certainly manage the temperature level of the water in any type of size-appropriate freshwater tank, however they are not all created for use in saltwater and also reef containers.


The most effective chillers for your circumstance are the ones that fit your storage tank dimension. Be sure to meticulously review the details before buying.

Our fish tank chillers assesses include this details, but not all will.

Experience the details, as well as particularly the concerns responded to on Amazon, if this information is missing in the description or testimonial.


Also if you’re not intending to go down a couple of hundred bucks on this chiller, possibilities are, you do not want to change it in three months.

So when you do your purchasing, validate that it’s not simply the paid reviewers obtaining advertising and marketing fees that recommend the certain alternative.

As I went through the testimonials of others before working on my very own, I found a couple of alternatives that had such minimal ratings I didn’t also bother reviewing the info them.

Real-life users inform you what you really require to find out about the item, even on those that come from actually trusted brand names.


If possible, search for a fish tank chiller that utilizes a heat exchanger to help temperature level control 2 methods. The best fish tank chillers make use of titanium warmth exchangers due to the fact that these last permanently.

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If you’re collaborating with a container of as much as 700 gallons, the Hamilton Innovation Aqua Euro Max is an excellent choice that will benefit you.

The fish tank chiller utilizes rubber places to reduce vibration for quieter procedure, has an intense electronic LED temperature display for precision, and a powerful anti-freeze system that doesn’t permit the warm exchange resort to freezing your fish out.

This well-trusted fish tank chiller comes very advised by specialist fish keepers and daily hobbyists alike.

Check-Price: on Amazon

The LED display makes it very easy for any person to track the temperature of the tank and also the filter is an easy-to-remove version that makes for simple setup as well as maintenance throughout the lifetime of the chiller.

Here’s the breakdown:

  • Type: Deep sea or freshwater
  • Tank dimension: As much as 700 gallons
  • Horse power: 1/13 to 1HP
  • BTU rating: 25% BTU per watt
  • Chilling power: Cools 20+ levels listed below space temperature level\


For your tiny or mini aquarium chiller needs, you’re going to wish to look into the Nova brand IceProbe Thermoelectric Refrigerator.

This effective little tool will maintain your betta and your guppies cool, easy-going little people through the right temperature level and smooth circulation price.

This fish tank chiller doesn’t call for a water pump, as well as mainly runs extremely quietly. It’s energy reliable, reasonably compact– though I’ve seen some reviewers complain that’s a bit large for micro-aquarium; as well as is incredibly easy to establish and run.

Check-Price: on Amazon

Here’s the breakdown:

  • Kind: Freshwater
  • Storage tank size: 10 gallons or much less
  • Horsepower: Unknown
  • BTU score: Unidentified
  • Chilling power: Cools down as much as 8 levels in a 10 gallon container

This awesome little fish tank colder includes a 5-foot, nine-inch cord with a 6-foot probe cord, yet only gauges 4-inches by 7-1/2- inches for a very tiny, powerful fish tank air conditioning in your tank that hold 10-gallons or less.

This little refrigerator has a fan over the heatsink that gives off a low humming noise, though it can’t be learnt through a short distance away.

It’s not audible to be disruptive or bothersome when working appropriately, unless you have ultra-sensitive ears.

Honestly, though, all tools keeping up electric motors such as this will have some kind of sound, so don’t allow that hinder you.

The IceProbe features a 1 year warranty.


The JBJ Fish Tank Arctica Titanium Refrigerator is an additional power aquarium chiller worth thinking about for your aquarium that holds over 130-gallons of water.

This beast is developed with coil technology that chills your tank efficiently. Which is why you only wish to utilize it on the right dimension container– promptly and also easily.

The coils in the JBJ Refrigerator pulls cool air from the front of the cooler as well as draws the air out through. The back while home heating as well as tiring it to stay clear of over-chilling the fish.

The integrated thermostat helps you keep an eye on the exact temperatures and allows you to promptly adjust lower or higher as required.

And also, it includes a remote control with a bright LCD present for easy reading whenever of day or evening.


Check-Price: on Amazon

Here’s the breakdown:

  • Type: Freshwater or deep sea
  • Tank size: 130+ gallons
  • Horsepower: 1/15 to 1/3 HP
  • BTU score: unidentified
  • Chilling power: Cools down 10+ degrees


If you’re searching for an uber effective freon-free chiller that will certainly keep your medium to huge aquarium cool. The HydroFarm Active Aqua Chiller is a wonderful instruction to go.

This refrigerator originates from a well-trusted brand that focuses on business quality products for aquariums. As well as hydroponics for experts and also beginners at an affordable cost.

While practically this chiller is developed for use with hydroponics tanks. They’re perfect for freshwater or deep-sea fish tanks as well.

They cool down with a whopping 2300 BTUs per hour in anything from 40 gallon fish tank to 250 gallon fish tank, using 1/10 to 1HP power as well as zero freon.

Check-Price: on Amazon

Here’s the breakdown:

  • Kind: Freshwater or deep sea
  • Tank size: 40 to 250-gallons
  • Horse power: 1/10 to 1HP
  • BTU score: 2300 BTUs per hour
  • Chilling power: Cools 30+ levels in smaller containers


For the budget-conscious fish caretaker, the Petzilla Fish tank refrigerator cooling system is your ideal choice.

This little nano fish tank refrigerator is budget plan pleasant. And also will certainly maintain your small aquarium chill and healthy for a long time. This little refrigerator helps both freshwater and deep-sea, too. So whatever type of fish you maintain, you remain in luck.

The Petzilla Aquarium refrigerator system affixes to your fish tank wall surface to lower the temperature levels as much as 7-degrees Fahrenheit.

The follower system has two variable speeds with a vast angel modification as well as stable; solid clamp to enable the best placing for cooling your storage tank.

Check-Price: on Amazon

Here’s the breakdown:

  • Kind: Freshwater or saltwater
  • Storage tank dimension: 10 gallons or smaller per follower
  • Horsepower: Unidentified
  • BTU rating: unidentified
  • Chilling power: Cools up to 7 levels.

Frequently asked questions

Q. Does saltwater aquarium need chiller?

As a reef owner, you must also consider the effects of evaporation caused by increased temperatures. If you reside in a climate with sustained high temperatures, an aquarium chiller will be required to properly keep a reef tank at a consistently ideal temperature.

Q. How do you cool a saltwater tank?

Float a bag of ice or cold water in the fish tank to gently lower the water temperature. (Take care not to lower the temperature more than 2 or 3 degrees F in a 4-hour period.) Avoid putting ice cubes directly into your aquarium unless you make them with reverse osmosis or dechlorinated water.

Q. What size chiller do I need for my aquarium?

Multiply your tank size in gallons by 8.3. Then multiply that by the number of degrees you need to drop. For example, in a 55-gallon aquarium that needs to drop by 4°F to reach the suitable temperature range of 78°F: 456.5 BTU/hr x 4-degree drop = A chiller rated for at least 1,826 BTU/hr.

Q. Where should an aquarium fan be placed?

To achieve the best results the fan should be placed on the end of an open top aquarium so that air movement will be passed across the length and into the open room. This will allow a gentle flow of less humid air from the surrounding room over the maximum amount of water surface area.

Q. How much can fans cool an aquarium?

It can easily drop the water temperature by 2 degrees when the room temp is in the high 70s or low 80s. (Tank temp is 78-79). But when the room temp gets too hot, it can’t keep things in check. Try to find a used one, they don’t pop up to often but they do every now and then.

Q. What does a chiller do for a saltwater aquarium?

A marine chiller essentially works like an ‘air conditioner for your water. The water from your tank stays safely inside the clean pipes in the unit, but those pipes are in contact with much colder stuff, so the heat from your water gets “sucked” out of the water, cooling it down.

Q. How long do aquarium chillers last?

Also in need of a chiller new/used and is a good research question. You should be able to get a good 10 years before service. Then most of the time, they need charged.

Q. How cold can aquarium chillers get?

The chiller is relatively quiet with a 50-dB sound level. The range for user-set temperature is 39°F to 90°F (3°C to 32°C).

Q. What is the best temperature for a saltwater aquarium?

between 75-77 degrees. – The choice of temperatures in an aquarium is as varied as the owners. Some aquarists feel that keeping your tank between 75-77 degrees is best, some say 75-80 degrees. Others feel that some corals and fishes, having come from warm tropical waters, do much better at temperatures of about 80-85 degrees, or higher.

Q. Are aquarium chillers loud?

Aquarium chillers can be loud, depending on how they are designed. Usually, aquarium chillers function silently and do not disturb the water a lot. However, fan coolers can be a bit noisy. It is not enough to harm your fish, but it can be irritating at times if you prefer silent devices.

Q. How do I cool my aquarium tank?

Reducing Water Temperature
1. Keep the aquarium lights turned off.
2. Make sure the room does not receive direct sunlight.
3. Remove the hood from the tank (use caution if your fish are jumpers). Also, keep an eye on any cats you may have.
4. Place a fan so that it blows directly across the water.
5. Float ice packs in the water.

Q. Do I need a fan in my fish tank?

An aquarium fan is an electronic device designed to move air through or around an aquarium. Aquarium fans prevent stagnation, which can be deadly to both fish and plants. They also help to maintain the temperature of the tank by mixing warmer waters with cooler waters.


When you’re new to keeping fish or just requiring to replace tools, some good, strong, honest testimonials help you find the most effective choices readily available.

Our aquarium chillers reviews must assist with this with exam of the container dimension, temperature controls, ease-of-use, unique functions, as well as a lot more.

Just take a look, read, thoroughly, and also compare each sort of chiller with the type(s) of fish tanks you maintain and also see which option is best for you.

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