Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Grass Carp

I am not positive my GC are a real problem. All I know is FA grows and does not disappear until I spray it with Cutrine.Maybe the GC help with the demise of FA but i wonder what they subsist on with no FA? The fact that they may be eating pellets or beneficial plants is what troubles me because they are getting huge.

I hate to kill them without being sure.