I seem to have a lot of dark green algae coating the leaves of my fake plants and I'm not sure why. The tank is 10g, heated, filtered, cycled, and houses my sorority girls. My typical water change is 50% once weekly with a thorough gravel vac.
Am I not doing enough water changes? That's my first guess. Is it over-lit? I don't have this problem in my 5g or my 2g all of which have fake plants.
Any other ideas?
My other problem with this tank is that I often get an almost shiny layer on the top of the water. When you run something through it to interrupt the layer, it looks like it breaks up into pieces, it doesn't just swirl away, you know?
Does anyone know how I can fix this?