Nothing alive in the lake?

fished Ketner lake Thursday 4/12/12, afternoon. No signs of fish in the lake. Used worms on the bottom and under a slip float along the rock dam.

Have been to this lake 4 times in 3 years, never caught anything. did see a HUGE carp swim by me near the dam last year.

There were no small minnow/fry sized fish swimming along shore in the rocks or water bugs flitting around. Lots of algae on the rocks too.

Has ANYONE ever caught a fish here?? i was hoping for some bullhead, they are hard to find in this state.