I got a load of that in my 60L, but to be honest I dont really mind it, in some cases it looks quite pretty lol
to get rid of it, the only way i have found is to screape it off hardy plants with your nails, or to cut it off, if necessary, cutting off badly covered leaves
I had some moss balls covered in the stuff, I moved it into another tank with my apple snail and he's cleaned it all off Trouble is, he eats any and all plants, including java moss, red water lilly, wisteria and vallis.
ive been cutting it of and scraping it off and adding anti hair algae with water changes and it still comes back, i have a couple of algae shrimp and two ottos ,what else could i do