HOW TO: Aquarium chiller

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Some hobbyists live in areas where it might get very hot in certain months. Cooling their aquarium water on a constant basis is something they might need to consider.

In this video, I show you how to build a chiller that you can do at home that will not only work well, but look good, be functional and be cost effective.

I wanted to keep this project under $100 and be universal for any aquarium. As with all my videos, I also needed to create a project that many people would actually be able to do. So simplicity is always key.


Smaller chillers start around $500 for a chiller rated for around 50 gallons.
This project will only cost around $100 for the same size tank, and use less power.

More so, this project will serve to inspire you with a simple idea.

After running on an aquarium for 12hrs, it has no problem with dropping the temperature by 3-5C.

I ran this in my house. I used it on a tank that was at room temp of 22C. It dropped the tank temp to 17C within 12hrs.

It might be able to cool even more, however, i ran it for only 12hrs with 200 GPH on a 50 gallon barrel. If you slow the flow more, it will cool faster.