Euglena surface films can also be green and various hues. There are 2 - 3 species of Euglena that have red pigments; others are usually green. Safer and more enviornmentally friendly algacides esp for floating scums/films are various brands of peroxyhydrate (hydrogen dioxide) i.e. GreenClean, Phycomycin, Pak27. No chemical residue with these algacides.
For those interested Anacystis is the older scientific genus name for Microcystis, a colonial Cyanobacteria.
Last edited by Bill Cody; 12/17/10 02:07 PM.
