Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Algae Problem

For more information on the topic of tilapia eating filamentous algae (FA). As noted by FishinRod there are many genera and several thousands of species of FA. To me from the picture above it looks like most of the clumps or groupings of floating material is or are composed mostly of filamentous Cyanobacteria and not the real common green filamentous string like algae.
Unlike cyanobacteria plankton blooms there are or can be attached growths of filamentous Cyanobacteria - bluegreen algae. These usually occur as mat-like growths of varying thicknesses. If the material has an offensive odor then it is likely Cyanobacteria. Sometimes these growths are mixed in with the green string algae. These Cyanobacteria growths can also sometimes contain toxins that are probably distasteful and could probably be harmful to human health and pets, whereas green filamentous string algae (Chlorophyta) are harmless. Though unsightly, green filamentous algae do not produce toxins and are readily consumed by tilapia. .