I have what appears to be some kind of algae in my tank. It's neon green in color, in multiple spots in the tank. I only see it where the snails pooped at and the flow isn't high enough in those areas to pick it up. The algae is not slimy like cyano bacteria and it is not stringy like GHA. You could say it looks dry? Almost granular in some areas. Maybe that's because it's covering the snail poo. Nitrates are about 3ppm and I don't have a phos test kit. Will try to snap a few photos here real quick...going out of town tonight.