- Manila, Philippines
- Just started
and a follow up question is... how do I know if I have biofilm? Reason for asking is I have 2 nerites who've done a great job cleaning the tank of algae, so now I'm thinking what to feed them when they've eaten all the algae. I've tried algae wafers and vegetables, they ignored them. But they seem to be always on the walls munching on something invisible. Is that the biofilm? I also have Indian Almond leaves and I heard shrimps eat that too. Can I also feed that to my nerites?