- Reaction score
- 1 year
My friends tank has a brown residue building up over the decor and the substrate. Is this algae? Will it go away on its own or should he get some kind of algae eater, like a snail or something? Its a 20gallon with only 2 tiger barbs since the others died awhile ago. Hes going to get a few more tiger barbs so theyll be happier but I could also suggest some sort of algae eater if that's what it needs.