Originally Posted by
Flower
http:///forum/post/3298278
I like the sponges! They keep the good bacteria in them, I rinse them in discarded saltwater during water changes. The more good bacteria the better, if you do get rid of them don't do it all at once.
I never used them at all, so it wasn't an issue for me. But I highly agree, don't X them all at once.
I guess my LR replaced the sponge in a lot of ways and I still have to rinse the LR so that it doesn't build up with detritus, which is basically what happens on the sponges. The problem with sponges, filter floss or LR in a filter is that if it's not rinsed, you have all this stuff that can actually pollute the tank if not maintained. I honestly think that both do the same thing. I just really wanted more LR that would be cured so at any point that I decided I wanted more rock in one of my tanks, I didn't have to run to the store.
I have Fluval Carbon running in the canister and ChemiPure Elite running in a reactor in my sump. I may change the two around the next time they need to be replaced, it just happened to fall this way for now.