Cichlid Fish Forum banner

If I want to put stacked rock against the back glass

1520 Views 3 Replies 3 Participants Last post by  tigger101023
what can I use to cushion it? Anything? I was thinking maybe the kind of foam that you put on top of a mattress, but I don't know if that's toxic or breaks down. Maybe a large filter sponge cut in half (or more), since they absorb enough water to not be *too* buoyant?
1 - 1 of 4 Posts
I actually did this recently, don't think I took any pictures, I bought some egg crate, spray painted it black and just put it behind the rocks, had to cut some notches here and there for the filters.
1 - 1 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.