Purple coralline algae growing on my sand

[Dakwan]

Its cyano! Coralline does not grow on sand. Your nitrates and phosphatesmake it grow. Cyano also comes in green. Lowering the "trates" will be a big challenge and there different ways ot approach it. In the mean time try a dose of Red-Slime remover.

haha you got tricked by ourfish dredging up an old thread :bounce:

 

[Ourfish]

oh sorry =( I searched coralline on the forums and replied without thinking

 

[Dakwan]

Haha that's fine, you asked a general question while sen was answering one from over a year ago so i had to tease a little