The info posted on Tilapia is for growing food fish, NOT for algae control.
For food fish, no females are wanted, For Algae control and forage production, females are what are wanted! You will be wasting your money stocking predominantly male tilapia. I supply/stock mixed sex pure strain Blue Tilapia in ponds each spring. In Indiana, you can safely stock (a minimum of 40 pounds per acre) mixed sex Blues when water temps hit 62 degrees or higher at a 4 foot depth for 4 straight days....usually in early/mid May. Any other species or hybrid of tilapia needs 70+ degree water to be stocked...all other Tilapia suppliers I know sell male, or hybrid tilapia which gives you far less bang for the buck....Male only stockings would need 500 pounds or more per acre to control algae, and of course, you get no forage production for your other fish species...
