Its a bright green algea and it spreads over my substrate (fine gravel) and looks like some sort of filmy membrain but overnight it shrivils up and turns into a slimy brown clump that floats to the top. It then repeats this cycle every few days. sorry I couldent give any pics of what it looks like.
Cories are subtropical fish you have to keep your temp in the high 70s my heater shortedout and my gouramis platys geos and barbs survived in 94 degree water but my platys didn't make it.