I'm not looking for one. Only asking because I recently switched to sand. The other day there was a bunch of fish waste on the sand I thought I was going to have to clean this weekend. Yesterday I noticed it had almost all disappeared. I have mostly new world cichlids, 2 pacus, 2 spotted raphael catfish, and a pleco. I wouldn't think any of them would eat that or any fish for that matter. Any insight would be appreciated though. Thanks.