- Joined
- Apr 14, 2017
- Messages
- 210
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- 91
Can you please help ? I have been battling with this algae for last two months. I syphoned multiple time. This is a green stuff like mat over the sand bed. When I remove, the sand comes with it. Changed water regularly. Running chemipure blue and GFO. Finally tried chemiclean. No luck. Any idea what is this ?


