Aquarium Chillers Cooling Fan, ColdWind Cooling System for Salt/Fresh Water (2 Fan)

Perfect size for my 3.7 gal shrimp tank. Seems to work pretty well and cools the tank a bit, it is a bit noisy but it doesn’t bother me. Also it’s cheap so

These fans work very well for my aquarium. They do take a while to cool down the tank and few degrees but it works great for the Illinois climate I live in. If you need a strong fan that works quick and you need a cool or cold tank but I suggest these for like 10 to 20 gallon tanks. It works very well for my 15 gallon.

Works great for glass lip tanks! wont work on anything that has a plastic lip at the top, and my biggest issue is the 1-2 ft power cord they give you. I would have given this a raving 5 star review if they had given a longer longer power cord. Other than that annoyance, the fan itself works great, my fresh water tank runs high in temp and this immediately cooled it down, the fan isn't too loud and has so far done exactly what I needed it to.

The edge of my 55 gallon tank was too thick to clamp it on, but I was able to use a pair of 2 inch c clamps instead. This thing works great so far, cooled my tank down from 82 to the ambient room temp of 76. In fact it works too well, I'm losing water through evaporative cooling. So I've ordered a heat/cool thermostat so it only runs when needed.

Works as it should. Havent really had to use it extensively since I purchased it. It is pretty loud vs the rest of my setup. So I turn it on only when I am not staring at the tank or near it.

I purchased this to draw new air through a bio active vivarium with live plants, lichen and moss. Works beautifully with glass Versatops, both 20L and 55G. Low noise. The connector did come loose and had to be super glued, but this is the only issue and totally fixable. I’d buy it again for future builds.

I'm using two of this fans for my 40 gallons reef tank. I was really septic if they can cool down my tank, but wasn't ready to spend around $1000 on professional chiller. I connect them to my ink bird temperature controller and they doing the job perfectly. My tank is always between 77-78. The fans what is very important to me are pretty quiet. Highly recommended for nano tanks.

The clip that should be used to mount the fans to the aquarium did not fit my aquarium top. I had to find some way to run some wire thru the unit and to other cords (ie: my power head & air pump) to keep this unit in place. Otherwise fans fell over the back of the aquarium if bumped, etc.The fans themselves run fine. Decent quality/price.