purple slime?

There is this purple slime like stuff covering alota the fake plants and some of the gravel. whats the deal is it harmful or bad it wont go away. (90gal fowlr)
 

karajay

Active Member
Probably cyanobacteria (or red slime algae).
Some of the most probable causes include insufficient circulation, excessive lighting or lights that are old and out of spectrum, use of tap water etc.
Try a search for a thread called "How to rid your tank of red slime" by JustinX.
 
Top