- Joined
- Aug 12, 2018
- Messages
- 9,652
- Reaction score
- 13,321
- What state or country do you live in
- Florida
It does evaporate very fast-- I have it in a hot room, and in addition to the return pump nozzle pointed at the water's surface, I use a large air stone. So I'm constantly dumping water in the back. Of course, if it wasn't my fish QT, but a main tank, I guess I would use an ATO. (I have one on my IM 20-gallon).

