I dont think he did anything wrong. the fish are here to stay and if he would have killed them it would not have made any impact to help rid of the species from the waterway. he put it in a 20 gallon thats been dried up for years with lake water. now if u ask me our professional lmb anglers that go from lake to lake do more damage then what he did. I know there probably suppose to sterlize there live wells but i would place money on it that there are some who let the water out of there live well but still remails a little water in them and then go to a diff lake and catch lmb from that lake that goes into the live wells still holding maybe a inch of water from the lake the fished last. could be wrong but i bet it happens. The only way of ridding of them is to stun the water so the all the fish float to the top and go around netting up the non natives and if the waterway is to large then that simply cant be done. The part of catching and killing them to me is rediculous and the point can be argued until ur black and blue in the face but the fact is there here to stay. larger predatory fish will do alot mroe to clean them up then someone throwing back a few that he caught. Its really not worth arguing about at least for this topic only. If u can try to isolate the problem as they tried in the maryland pond with the snakeheads then good but once they got out of control u dont see the fish and game out there shocking all the waters were there suppose to be at because its to far out of reach now as well as the problem in florida which is even worse cause theres multiiple non native species everywere. There just simply cant be anything done about it.