- Joined
- Jan 15, 2019
- Messages
- 135
- Reaction score
- 50
If you take out the white filter floss stuff, there are three black sponges. They look like sponges, nothing exciting. The guy who sold it to me said to never rinse them or throw them away. (Although I did rinse them in some used tank water after cleaning out algae the other day. But it was non chlorinated so I thought it was okay.)