Grey/Black algae!

topmav1 · 03/28/2006, 07:52 PM

I was wondering if anyone has ever encountered black/gray hair algae. I set up my tank again about three months ago. Just recently a friend asked me to hold his emperor angel for him until he relocates. Since the addition, i have had these breakouts of dark gray algae on the sandbed. It cover 3/4 of my sb. I have never read or heard about this so if anyone has experience with this please let me know.

Thanks.

params are all measuring in the acceptable ranges.

ph - 8.2
ammonia - 0
nitrate - 0

not sure about the rest right now.

discus010 · 03/28/2006, 11:00 PM

Sounds like cynobacteria. Good waterflow and protein skimming helps to eliminate the problem. If your bulbs are older than 6 months, that could also contribute to the growth of cyno on your sandbed.

topmav1 · 03/29/2006, 04:43 PM

Could be Cyano but has anyone ever seen black cyano???!

03/28/2006, 07:52 PM	#1
topmav1 Registered Member Join Date: Apr 2005 Posts: 246	Grey/Black algae! I was wondering if anyone has ever encountered black/gray hair algae. I set up my tank again about three months ago. Just recently a friend asked me to hold his emperor angel for him until he relocates. Since the addition, i have had these breakouts of dark gray algae on the sandbed. It cover 3/4 of my sb. I have never read or heard about this so if anyone has experience with this please let me know. Thanks. params are all measuring in the acceptable ranges. ph - 8.2 ammonia - 0 nitrate - 0 not sure about the rest right now. __________________ 90 Gal Oceanic Bow-T5 - Retro Halides - Softies tank

03/29/2006, 04:43 PM	#3
topmav1 Registered Member Join Date: Apr 2005 Posts: 246	Could be Cyano but has anyone ever seen black cyano???! __________________ 90 Gal Oceanic Bow-T5 - Retro Halides - Softies tank

03/28/2006, 11:00 PM	#2
discus010 Registered Member Join Date: Mar 2002 Location: Daly City, CA Posts: 133	Sounds like cynobacteria. Good waterflow and protein skimming helps to eliminate the problem. If your bulbs are older than 6 months, that could also contribute to the growth of cyno on your sandbed.