Aquarium Chiller, Fish Tank Cooling Fan System for Salt Fresh Water, 2 Variable Speed, Wide Angle Adjustable (1-Fan)

We just got our axolotl over the winter so keeping it at a safe temperature for him hadn't been a problem. Over the last week or so here in Oklahoma, temperatures soared into the 100's and our axolotl is kept upstairs, so when the temperature of the water in his tank started creeping into the 70's I started doing my research. I found this and after reading all of the helpful reviews, especially for axolotls I didn't hesitate to try it, considering the price of a tank cooler was not something I wanted to have to purchase, but certainly would have if this didn't work. He's a part of the family. I'm so glad I made this purchase. It is literally a life saver considering my research informed the that the ideal temperature for them is between 60°-64° and anything above 70° becomes problematic, even deadly. I received the tank yesterday after work, about 4:00 and the temperature on the tank was approaching 72° (first picture). I immediately took it out of the box, plugged it in, and like other reviews stated, it didn't fit over the top of the tank, but for now it's being held up by the glass lid I had over the tank (second picture), works fine, but I will try velcroing it, like another review stated they did so that my son (he's not a child, he's 16) doesn't accidently knock it into the water when feeding him. By 6:00, in the heat of the day and when the upstairs A/C is only able to cool the upstairs to 75° and with the fans on high, the tank had already cooled down to 68° (3rd picture)!! 4° in just two hours! I was very happy and so was he. He went right up to the fans and stayed there for a bit, almost like a human cooling themselves in a fan. I think he liked the current it gave off, but it was cute. The fans on high are a little loud, I mean, it sounds about like a little desk fan you would have on high. I checked again on his temperature when I woke up this morning and it had cooled his tank below 66°! That's as low as my thermometer reads so if it's lower than 66° or higher than 84° the thermometer strip is just solid black, so given that it was below 66° I felt like it would be okay to turn the fans to low. After coming home from work today, again in the heat of the day, with the fans on low he's setting at a cool 66° (4th picture). Couldn't be happier with my purchase!

I bought the single fan version of this for a 10 gallon tank with two small goldfish. They do fine in temperatures up to about 75 degrees but get grumpy and agitated at anything warmer, so I've been running this on hot days this summer. It cools the tank down quickly on the lower setting even when it's 80+ degrees in the house and is so effective that I need to leave the heater in to stop the temperature from getting too low.The rim of my tank is a little too thick for the fan to clip onto (the plastic isn't particularly flexible so there's not a lot of wiggle room in the thickness they say this will work with), but it rests easily on the rim in a corner propping the hood open an inch or two. With this setup, I lose almost an inch of water to evaporation on a hot day.The fan has two speeds but the lower one is more than adequate to keep my tank cool. I wish that instead of the higher speed, there was an even lower one that I could run at night - my only real complaint is the noise level, which isn't outrageous for a fan this effective, but the tank is in my bedroom and this is WAY too loud to sleep through.Overall it's a great little fan for the price and I'd buy it again.

This Chiller does work as expected to lower the temperature of the water for a safe aquarium. Very happy with the purchase. Fantastic aquarium chiller

I bought a 4 fan for a 20 gallon axolotl tank because we are planning on upgrading and I didn’t want to buy another one when the time came.Oh. OH! I cannot BE more impressed!!! We keep our house at 73 degrees at a minimum because we have room temp reptiles that need it. THIS THING DROPS THE TEMP ALMOST 12 DEGREES ON LOW!!! WOW!!!It evaporated 1 1/2 gallons in the first three days. I’m not even mad! I’m so impressed! $39.99 versus $250 minimum for a chiller. DONE! Chiller VERY NOT NEEDED! In the summer in Arizona the house will be at 76-79 AND I STILL WON’T NEED A CHILLER! HA!!!!And the noise? Negligible. It was loud when we first plugged it in, but I think the volume has both dropped and we got used to it. It’s right under my daughters loft bed and she is not bothered in the least.

I bought this item around the end of February and Less than 6 months later some of the fan don't work anymore. I installed it over the rim of my sump that way it wasn't showing. Much larger than I thought it would be but that should provide more cooling. Or so I thought.Pros:Easy to install provided that your tank in rimless and the glass or acrylic is not too thick.Has hi/low switch that can be toggled.Cons:The fans they used to keep the cost down are terrible. They were by far the loudest thing in my system when they are set to full power.That are made to be used around the tank, but there is nothing done to help protect them from the water. 3 of my 4 four fan I noticed had shorted out and the connection on the fan. Where the wire comes in and meets the circuit board for the fan. The are signs of electrical burn on the fan and the wire. I decided to replace with much better fans than can more air easier while still being quieter.Honestly they do say you get what you pay for. I'm not saying it is a horrible product and you shouldn't buy. I just want you to be aware of what happened to me as a fellow consumer. You should get a much better made product from a different batch.