Franna29 Joined 23 Jun 2014 Posts 430 Reaction score 17 Location Centurion 12 Sep 2015 #1 Massa. Can someone tell my what kind of 'algae' this is. And if it is harmfull?
jimilutz Joined 17 Jan 2013 Posts 478 Reaction score 50 Location Randburg 12 Sep 2015 #2 It is cyano. It will go away with time. Nothing to worry about, just a little ugly, if it gets on your corals you can just siphon or blow it off.
It is cyano. It will go away with time. Nothing to worry about, just a little ugly, if it gets on your corals you can just siphon or blow it off.
Franna29 Joined 23 Jun 2014 Posts 430 Reaction score 17 Location Centurion 12 Sep 2015 #3 Thanx. But what causes it?
jimilutz Joined 17 Jan 2013 Posts 478 Reaction score 50 Location Randburg 12 Sep 2015 #4 Excess nutrients.
