I tried to put an 180 gallon in the aquarium and found out to be a big mistake. I putted three 300 Watts heater to keep the temperature at 78 degree. The price of the three heaters was very costly, but thats not the worse part. I had datnoids, flagtails, and clown loach and the garage opening and closing all the time made it very uncomforatable for the fish. I losted about 6 datnoids, 10 flagtails and a bunch of clown loaches. I wounldn't recommend it, especially if you going to have sensitive fishs.