Will summer stocking of mossambique tilapia get rid of the Azolla problem on my 1/4-acre pond in N. CA? It's in the forest, so I don't have to clean up the winter-killed fish myself. The bears, coyotes, mountain lions, raccoons, ravens, eagles, and minks will do the job. (I'm probably forgetting some.) Since the tilapia will not reproduce (assuming all males), I may have to plan for some summer attrition from kingfishers, herons, and minks. What's the right stocking rate?


T. Gray Shaw
ISA Certified Arborist # WE-1037
Redway and Berkeley, CA