Tilapia, where available and legal to stock, are probably far and way the best biological control for FA. Grass Carp rarely if ever have much impact on FA. These two species and filamentous algae - FA are discussed in many threads on the forum; read about Bruce Condello's tremendously overstocked GC (zero FA eaten) experience here.

Goldens Shiners appear to have some filamentous algae FA controlling ability, at least when present in large numbers. Read about filamentous algae FA and GSH in my pond here.

Last edited by Bill Cody; 01/21/13 10:17 PM.
"Live like you'll die tomorrow, but manage your grass like you'll live forever."
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