79 Gal Aquarium Chiller, 1/3 HP Fish Tank Water Chiller with Quiet Design Compressor, Refrigeration for Hydroponic System Axolotl Jellyfish Coral Reef 300L, Black

January 18, 2026 Just purchased it and it seems to be working just fine. I love that. It has a way to have a temperature range to turn on the compressor to start the cooling process. I will continue updating over the next few months and years as necessary. Before putting it together, I used both rubber, gaskets one on top and underneath the water outlet connection in addition to using plumbers tape. It’s best not to over tighten being a plastic nut and bolt thread instead have a better seal by using the tape. ********* Update: 3/21/26 Forgot to mention previously that this chiller is attached to a 125 gallon aquarium even though it’s rated for 79 gallons. It works absolutely amazing. Still no leaks, and a consistent temperature remains at wherever I set it. I am pretty sure it could also handle a 150 with no issues. My axolotl and cold water fish are more than happy in this set up. Still very happy with my purchase. I just added shutoff valves to this chiller in addition to making the return look nice with other Amazon items. ***********

This was a big investment for us, but I decided to purchase a chiller because we really struggled to maintain our tank temp last summer. (We have axolotls and they like to live at temps lower than 70 degrees.) We've had the chiller for about a month and it really does keep the tank cool. The setup was very easy, although we did purchase some clamps to make sure the hoses can't slip out of the tank. (The supplied hose length was enough to meet our needs, but stuff happens and I don't want a flood in my living room!) Programming took a few minutes, because I had to wrap my head around the instructions, but it wasn't too bad. I like that there is a calibration feature to make sure that chiller and tank temp are *really* the same. I also like that the powerhead and cooling unit are independent, since I know we will eventually blow out the powerhead! We have had 2 instances where the chiller has randomly made a lot of beeps and stopped cooling the water. It was easy to reset the machine and it didn't lose the specs that I programmed, but I definitely do double check the tank temp every time I walk by it so I know as soon as possible if something is wrong!

This works great for my cold plunge tub. I don't know exactly how many gallons my tub is but it's around 90-125 gal. I would recommend comparing the thermostat of the cooler with a thermometer in the water. I believe my cooler was a few degrees off, but it was easy to adjust. It keeps my tub cooled to 41 but will likely go a few degrees lower. When the thermostat was wrong I accidentally cooled it to 38-39 degrees so it can definitely chill the water pretty low. My ambient garage temp is around 60-70 degrees and it runs intermittently. I haven't noticed any large changes in electrical costs. If you cool it really low it will need to run more frequently but 41 degrees is my preferred temp.

I've had this chiller for a few weeks now and it is NOW working great. However, the first week of having it was spent sending tech support emails back and forth with the manufacturer of this item. The instructions included are different from the instructions on Amazon. Finally, after multiple back and forth - below are the instructions that worked. You need to program the DIFFERENCE between your low and high range. I truly hope this helps someone else. The chiller itself is great and the service was very helpful, but the included instructions were horrible. Here are the instructions that saved me from returning this: First, you need to press SET and then press the up and down arrow to set what temperature you want and press once RST. Secondly, you need to press once SET and you will see FI, then you need to press SET again and you can begin to set the Temperature Difference. (during the Temperature Difference the chiller will stop to cooler) Finally, you need to press RST and the chiller begin to cooler. I find you want to hold 32℉， and your room temperature showed 69℉, but your F1 Temperature Difference is 39℉. The 32℉ add the F1 Temperature Difference is 39℉ is 71℉. So of course the chiller need not work, because the 71℉ you adjusted is higher than the room temperature of 69℉. If you can set the Temperature Difference lower than 37℉ last time in your video, your chiller will work.

I've been using this with my ice plunge tub and it works great. I did buy seperate fittings, pipes and things but the actual unit is pretty solid and quiet. I do think you should buy a GFCI extension cord if you use this for safety though. But no real complaints, gets it down to 40 degrees easily with an ambient temperature of 80, we'll see how it does it in the summer.

Great product keeps temp in the low forties even in hot (90 deg) weather Wish it came with a filter

Well, I've had this chiller less than 3 months. It appears there is a short where the plug plugs into the chiller. if you wiggle it, it shuts It off. Just the vibration from running the chiller keeps shutting it off. As of now I've given this one star. Although I will say, I live in Arizona and it seems to keep the temperature around 47° in my garage even when it's warm out. When it worked, which wasn't very long. It's basically useless at this point. I have reached out to the seller and I will update.

Amazing. This item not only keeps my temperatures at a low 64 degrees Fahrenheit, but it can even go lower than advertised. This is all without saying how amazing these guys’ support team were. They not only shipped pieces that were missing in my initial order, but they even refunded a portion of the original price. An absolute wonderful team who were communicative, thorough, helpful all around, so I recommend them greatly, and look forward to future purchases.