Would anybody know what type of algae this is and what I can do about it? My Ludwigia Rubins and Rotala Rotundifolias have gone from beautiful plants to ones that are now covered in algae that I cannot wipe off the leaves. This has been the case for many months now and nothing I have tried made a difference. Not even dosing with H2O2 (30 ml) and Excel 5 ml on the advise of the Plant Guru on the PlantedTank.net (The "One-Two Punch" Whole Tank Algae Treatment). It killed the Staghorn algae but not the one showing on the picture. They are in a 12 G Fluvial Edge heavily planted communal tank with about 50+ RCS's, 6 Amanos, 5 Otos, 4 Mollies, 3 Guppies, 2 Corys and a few snails. 1 ml Excel /day 1 ml Florish Comprehensive 1 to 2 times/week 1 ml Iron/week 1 ml Nitrogen /week 1 ml Potassium/week 1 ml phosphate/week The last 3 macros I only started a month ago. I changed the 8 W stock lighting to 18 W from Ultrabrite and added a Finnex 11.9 Planted Led light which are on from 8-12 and from 4-9. Result of latest water test reads NO2 and NO3 at 0, PH at 6.6. Any advise would be much appreciated.