Fish lice = extra protein lolNot a problem, if you get American tilapia, where the farms are supposed to be constantly inspected. Asia is another story. I like the fish, but won't eat it if it's a guess as to where it came from. Asia is out, same as Atlantic salmon. Norway is not very particular about their farming practices either. Wild caught sockeye is about it, as far as salmon goes for us.I don't know about pig poop but talapia are the only fish that can eat exclusively vegetable protein and be table size in a season...try that with troutI meant garbage as far as how people raise them.