Yes I think thats it.
It only grows very slowly, but it is still there and It won't go away. I use flourish. Should I stop using it? I have 2 1/4 WPG and use DIY CO2. I think the growth has slowed since my last 70% water change last week. I have barley fed the fish anything since then. I reduced light to 6hours from 12. My barbs started eating some of my plants because of the food shortage I gave them. Nothing ate the algae though. I have tiger barbs, platies, red tail black shark, golden gourami, khulli loach, and a bristle nose. Will any of these eat it?