Don, my pond was stocked this May with Tilapia averaging 1 lb. each. They have grown and reproduced, and we occasionally see small ones which have washed over the spillway. When my bloom is good (visibility to 15-18 inches) I see nary a one�adult or fry. When it begins to clear to about 24 inches, I see them all over the shallows. My conclusion is that you should expect Tilapia to be invisible when phytoplankton is heavy, but will see then if it ever clears up. I would like to know from others if they have noticed this same thing.
Lou
