Aquarium Chiller Fish Tank Fan Aquarium Cooling Fan, 1 Yr Warranty

I was pretty skeptical about these little fans being able to cool a tank for an axolotl but they totally work! I have 10 gallon and 40 gallon tanks set up with the 2 fan option. The fan on the 10 gallon can achieve almost 9 degrees cooler than room temperature and 5 degrees cooler on the 40 gallon. I was really impressed that it still worked on a much larger tank! And I am using the lower setting on the fan. The humidity currently is 50% (inside) and my home is around 70 degrees. There is a good amount of evaporation so topping off the tanks with water daily or every other day is a must in my conditions. I have only had these for a couple weeks so I don’t know yet how they hold up. Given the price if they work for a year before they break I won’t be upset. As many others have mentioned, they won’t fit your rimmed aquarium. But you could carefully remove part of the rim (watch YouTube how to) or devise a way to rest it safely over the water. It would be great if one of these fan vendors read that these don’t fit rimmed tanks and adjusted the design- it’s only off by a tiny amount.

This fan is great for a 30-gallon tank. It can be a little loud on high, but I use the low setting anyway, so that’s not a problem. This is the second one of these fans I’ve bought. My first one lasted four years, which was impressive, especially at this price.I was skeptical when I read about the fan method for cooling down a reef tank. It seemed too simple, and I didn’t think it would work. But I decided to try it before buying a chiller, especially since it was so cheap and easy to implement. I’m so glad I did! This is definitely the best solution for a 30-gallon reef tank. I’m not sure if it would be as effective on a larger tank, but for a 30-gallon, it’s perfect.

Very loud. Works well at cooling tank.

This product works great for my axolotl. It has 2 settings high and low. On high it drops the temp of my 20 gallon tank by at least 5 degrees. I’d recommend it for the price if you have a small tank you need to cool a little bit.

Wish I could say I could give a proper review however it would not fit our 55 gallon fish tank. The fans are quiet and it runs good not sure if it will really do as fish tank cooler I suspect it would just cause increase in water loss in the tank

It’s super loud

The media could not be loaded. Works better than expected. I have a small nano 8 gal reef tank temp was high 80s even touch on 90 a few times took my lid off got down to 85 put the fan up a few days later brought it down to 74 on low power I like my tank at 78 so I angled all the way up 6to reduce the cooling effect. know it states 4 to 6 degrees im guessing its more due to its small size.

We bought this fan set (the 2 set) for our axolotl tank. We have a 20 gallon tank.After letting it run for 24 hours, the temperature in the tank went from 74 to 58! It definitely works. We're actually going to have to watch it doesn't get too cold or only run it for a period of time each day.Definitely great for the money spent. We did have to modify the fit a bit by adjusting the lid on our tank around it - but nothing terrible and definitely worth it.