Alright my friend saw a video about breading angels and told me when mine bread you should use a huge car wash sponge as a sponge filter. I'm thinking this is a very bad idea. But he thinks it will help keep the water cleaner. His idea: 2Ft long PVC pipe, drill holes but a bunch of car wash sponges on it. bingo, jumbo sponge filter. I think that would kill fish? Leave your thoughts Thanks!