Hello everyone!
I'm in a funny situation with my new sump. It came with a whole heap of bio balls, which I know I should stay away from because they can cause nitrate and phosphate issues. But my problem is, what other type of biological filtration can I use in the sump?
I'm not adding a lot of rock to the display and plan on only a few fish, but they're relative large fish so I think I need extra biological filtration. Live rock is out of the question as the only place I can put it in the sump is on a glass pane that I don't think will support the weight.
I'm in a funny situation with my new sump. It came with a whole heap of bio balls, which I know I should stay away from because they can cause nitrate and phosphate issues. But my problem is, what other type of biological filtration can I use in the sump?
I'm not adding a lot of rock to the display and plan on only a few fish, but they're relative large fish so I think I need extra biological filtration. Live rock is out of the question as the only place I can put it in the sump is on a glass pane that I don't think will support the weight.



