Pawfly Aquarium Chiller Fan, Quiet Aquarium Fan for Axolotl Tank, Fish Tank Cooling Fan, Aquarium Cooler with Adjustable Speed and Timer, Terrarium Fan Water Chiller for Freshwater and Saltwater Tanks

Amazing fan, controls temperature to 64-66 for my axolotl tank and the noise is slightly loud but very tolerable for how strong it blows air. Size is great for my 55 gallon tank and is very easy to use and the last one I used from this brand lasted for a year and a half so very durable

This works almost too well. My fish tank was getting too hot with the summer heat and I tried this to lower the temp. On not even the highest speed it lowered the temp 2 degrees in about 30 minutes. I really like that it has multiple speeds and a timer. I have a typical tank with the black plastic around the edges of the top and was able to fit the fan just fine.

These work great on top of my axolotl tank to keep the temperature down around 60. They are durable with minimal noise coming from the fan.

Wow! Maybe the best product I've ever purchased on Amazon. Absolutely whisper quiet. When I first turned it on I thought oh it's not working. It was working. Multiple speeds make it really great to adjust. Hard to believe a product that looks this good, and yes, it's plastic but feels this good at this price. Honestly fits my innovative, marine all in one tank perfectly.

I returned it because it does not help in caribbean weather...

Mounts securely and the ability to set the fan speed is great to control both temperature and water evaporation. Keeps the tank temp regulated in conjunction with the heater. Minimal noise but not dead silent, but costs way less than a chiller.

After reading others reviews I expected this to only make a degree or two of difference but it lowered the temp in my 20 gal long tank by 6 degrees! It is a little noisy, but worth it.

Works great, is definitely 3x quiter than the previous fan we had and safer if needed to move around for cleaning your tank.