I was wondering if the water temperature in a tank/aquarium could be lowered to say 60 degrees to put tilapia into a sluggish inactive hibernation state where they live through the winter eating very little, using less oxygen and producing little waist, much like what most northern fish go through?

Those of you that put in Tilapia to control FA, are they doing the job OK? A concern of mine is would they eat my Corkscrew ell grass? I have read they will eat some water plants.

I am heading north in the morning to hunt down the algae eating Northern redbelly dace minnow.