This wiki has been updated 4 times since it was first published in January of 2019. Water that’s too warm is a common problem for fish keepers, caused by living in modern climate-controlled homes or hotter environments. Whatever the source, one of these aquarium chillers is the solution, as they lower the temperature to ensure that everything goes swimmingly for your finned friends. Note that many don’t come with pumps, so plan your purchase accordingly. When users buy our independently chosen editorial choices, we may earn commissions to help fund the Wiki. Skip to the best aquarium chiller on Amazon.
9. Yubo iPettie
You shouldn’t expect the power of a heavy-duty unit from the Yubo iPettie, since it’s a basic fan system, but if both your budget and tank are diminutive, it just might work. It installs in a flash by way of a clamp mounting bracket.
- No complicated assembly
- About 16 inches long
- Only cools by 1 or 2 degrees
8. Coralife Energy Savers
Dirty, dusty environments aren’t good on your equipment, but the Coralife Energy Savers has an answer. Its integrated air filter helps keep contaminants away from the cooling unit, which leads to better endurance and reliability. It’s simple to remove for cleaning, too.
- Connectors can be rotated
- Easy-to-read led display
- Not exactly quiet
7. Chill Solutions CSXC-1
This Chill Solutions CSXC-1 was specifically designed for smaller tanks, those 30 gallons or under, and it offers steady results with a thermostat that can be set anywhere between 45 and 90 degrees. It’s even appropriate for non-aquarium uses, such as in a research lab.
- Sturdy hdpe base
- Preinstalled fittings
- Seems less powerful than advertised
6. Greensen Cooling and Heating Machine
Unlike some others, the Greensen Cooling and Heating Machine arrives with a pump that makes it a good value, especially as a budget-friendly investment. Of course, as the saying goes, you get what you pay for, so you shouldn’t expect industrial-strength quality.
- Can display fahrenheit or celsius
- Not as intuitive as many
- Instructions are confusing
5. Hydrofarm Active
If you’re concerned about the environmental impact of your gear, you might consider the Hydrofarm Active, as it uses Freon-free R410a refrigerant. It’s also versatile, with an anti-corrosive titanium evaporator that’s appropriate for both salt and fresh water.
- Includes two sizes of barb fittings
- Handy power boost feature
- Overall durability is so-so
4. EcoPlus Commercial Grade
For the casual hobbyist, the EcoPlus Commercial Grade might be a little too beefy, but it is certainly tough enough for those with serious needs, whether for hydroponic systems or aquaria. This is due both to its flexible operability as well as its robust steel housing.
- Remote control with 30-foot cord
- Powder-coated finish
- An expensive choice
3. JBJ Arctica
The titanium coil design of the JBJ Arctica ensures excellent heat exchange, while the built-in thermostat is accurate and effortless to set. Plus, it’s on the quieter side, so you won’t constantly be alerted to its presence.
- Molded carrying handles
- Digital display
- Footprint isn’t overly large
2. Nova Tec IceProbe
The Nova Tec IceProbe doesn’t have some of the fancy features found on other models, but it doesn’t have the high cost that these extras command, either. For instance, there is no integrated temperature controller, although you could add one, if you wanted to.
- 1-year warranty
- Simple and uncomplicated
- Good for tanks 55 gallons or smaller
1. Hamilton Technology Aqua Euro Max
While some options attempt to make the “one size fits all” thing work, the Hamilton Technology Aqua Euro Max offers five sizes, so you can grab the one that’ll suit your setup. And you can feel confident that it’ll run smoothly, thanks to its anti-freeze system.
- Memory recall for power outages
- Energy-efficient condenser
- A snap to install
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