I have a small pond, a little less than a 1/4 acre. 1/1/2 years ago i put 50 CC in and all was good i was feeding them up to about 2 months ago, now that its been warming up ive tried to fish for them and feed them but no sign. Ive caught LMB and sunfish but no CC. Is it possible they have been eaten? I can see about 12 slider turtle and 2 snappers.