Since you guys seem to know a thing or two about Tilapia I thought I would jump in here and ask a question or two, but I don't want to hijack the thread- Would Tilapia help clear the muck from the bottom of my pond? If so, how many would I need for a roughly 1/4 acre pond 6-7 feet deep and of what size? Also, they breed like rabbits, is that a concern given the Winter kill (although I don't want a bunch of funkifying fish either)? Thanks!