Aquarium Fan 2 3 4 Heads, Aquarium Chillers Cooling Fan Adjustable Fish Tank Cooling Fan with 2 Wind Speed Fan for Water Tank, Aquarium Tank Chiller (4 Head)

Purchased these for my axolotl tank and they’ve been working great so far. Had them for about 9 months now. The fit is a little tight, I just had to pry open the bottom the tiniest bit to fit onto my 40 gal breeder tank

This has been keeping my axolotl aquarium about 7 degrees F cooler than the room. So far so good! It is a little noise but that is expected.

It attached easily to my 20 gallon long axolotl tank even though the tank has a plastic rim on it. The fan runs a bit louder than I expected, but it is only annoying because I have a studio apartment, so I just keep it on the low setting. As far as temperature control, it brought my tank from 70-72F to 64-66F within a few hours! I live in Florida and keep my AC around 72F so I was pleasantly surprised at how well this worked. It does increase evaporation significantly so I have to top off the tank 1-2x throughout the week between water changes. But for the price (especially in comparison to a chiller) I am very happy!

The media could not be loaded.  I use this for my axolotls and it keeps their water much cooler. We are in Arizona so it gets very warm here. I turned it off one day and the water was significantly warmer. I was looking for an alternative to a water chiller and this works great! We have a 20 gallon tank. And it’s super loud on the lower speed setting

I bought this just over 4 months ago and today it goes in the trash because it's completely stopped working. Honestly I really didn't use it that much. Probably ran it at most a week on low. The cord still shows power but the fans don't move. $35-45 for this and not even worth it. Now I'm buying a chiller for my tank.Sad but typical.

Love that there are two settings. The lowest setting has been great and easily cools my 40 gallon tank by 5 degrees!

Was quite disappointed that it arrived not as expected with a new packaging. I did test it out and it seems to be working quiet and well. However, the wiring is short so you have to be close to the outlet or have an extension cable. The wiring is located on the left side when mounted, and since my outlet is further on the right, it was not long enough to reach.

Not very noisy at all for three fans, in my opinion. I find that it does what I need it to do by bringing the temp down for my 5.5g tank by 6-7°F at the low setting. I was able to use the high setting to bring the temp down faster, but I'm not sure it can cool the tank lower than 64°F, which is probably fine since I don't want to kill anything in there. Pairs nicely with a wifi socket as a timer or for voice commands.

Ya no aprietan los tornillos.

J'avais peur de ne pas pouvoir l'installer sur le rebord de mon aquarium en lisant les rewiews mais finalement aucun problème! Très solide, deux intensités. La plus faible est assez silencieuse et réussi à baisser la temparature de ma 125L de 2°. La plus haute est plus bruyante mais réussi à baisser d'un autre 2° donc un total de 4° de moins! Parfait pour tous les propriétaires d'axolotls qui ne veulent pas investir dans un refroidisseur d'eau.

J’ai relié le ventilateur à un Inkbird, et je suis content du résultat. Le ventilateur permet de de maintenant une température autour de 25 degrés sur mon aquarium de 13,5 G.

I've ordered several of these now, they are fairly quiet until half a year or more of non stop use wears them down. They will consistently drop your tank temperature 2 or 3 degrees which is useful if you have a pet like an axolotl and need their water a little cooler than room temperature.

Came defective and I cannot fix the bottom does not even fit on to my tank