Each spring, about 135 pounds of tilapia are added to the lake in the annual stocking for algae control. Buckets full of fish are dumped into the lake in four different channels. The results, each and every year, have exceeded expectations. Those hungry vegetarian fish eat algae, spawn, eat algae, spawn, get bigger and eat more algae and spawn. Since tilapia cannot survive in water under 55 degrees they begin to die off in winter and become forage for bass, catfish and all the other fish in the waterways of Lake Interlochen.
