Taran
Aquarium Advice Regular
- Joined
- Oct 21, 2012
- Messages
- 61
The purple stuff?? Coralline, an algae that makes the rocks look pretty. It's actually something a lot of people encourage to grow.
I don't think it's either, if in fact there are leaves. Hard to see, but you might try looking though this article
Browse Groups in Algae (Red)
And seeing if you can find a match.