Blue tilapia will live the longest in Indiana. Eating Chara (an algae) will happen IF other, more desirable foods are consumed by the offspring first. In my aquariums, it is quite fascinating to watch Chara being consumed....My Blue Tilapia start at the top of it and chew till pulling it from the substrate.....

PROPER stocking rates for individual ponds is crucial to have a shot at accomplishing the goals desired!