- Joined
- Feb 14, 2019
- Messages
- 19
- Reaction score
- 26
With a 150 display tank and 75g (not actual) sump I have a problem. Every couple days my return pump section of the sump runs so low that the pump draws air and sends bubbles to the tank. That section is rather small. (8” x 8” x 17”) I had hoped evaporation would be slower because of the size of the sump, but didn’t realize the small return section was the only area that would show the evaporation. Did I do something wrong?