Bill,
thanks for your story about good success in the past. I wonder if the floating puddles of matted algae I had may have been the lyngbya variety. Either way, the lack of predators in my 1/3 acre pond means that I might get away with a starting dose of 25 tilapia rather than 100... The other consideration is initial size. Economics say I will be better off shipping small fish and let them grow over the summer. Reproduction is not too important if they will all die in the fall anyway.

I plan to experiment and report back my success.. If they all die in the fall then I shouldn't expect a big difference in success if i get mozambique vs blue variety?