Last month I put five triploid grass carp in my 1/4 acre pond. We use it for swimming so want to get rid of all the weed growth. I know they won't clean it out in a month.... but is there any "typical" behavior? Haven't see anything since they went in. Do they go deep? Or prefer shallows? Do they go where the vegetation is thickest? Or eat around the edges? I would appreciate hearing your experience with these?