I took my mini-g from ASM out of my 75 gal. . I was able to take it a part, and put it in my 10 gal. sump , that`s connected to my 40 gal. breeder. It started to pull out some nasty stuff from the get go! I had a prism skimmer on the tank. Garbage. I would not sell this thing even if I did not like you!!! This thing should not be on Any thing bigger then a nano. 