If you catch a bass in a lake, bring it home for a month or two, realize you made a mistake and take it back to the same lake or body of water you got it from, no harm no foul. Alot of people get on here and cry bloody murder about catching a fish and then releasing it into the wild. Needs to be understood that yes it is COMPLETELY unethical to release a non native fish into a foreign water system. Such as catching a muskie in Michigan and releasing it in Texas. But to release say, a LMB, into water where there are other native LMB, is not wrong. Its not much different than upgrading them from your 125g tank to say a 345 million gallon tank. If the argument is that you are potentially introducing new diseases / micro biology into an ecosystem, then what the hell kind of crap are you breeding in your aquarium? If the fish is healthy when you release it, the fish is healthy. Period. Its not going to miraculously spawn some new bacteria that is going to kill all the LMB in the new lake. Native fish are native fish. They move around bodies of water and in some cases can travel huge distances unwillingly through a water system from one lake to another in a downstream chain. So to have a cow about catching a LMB, keeping it awhile, and then releasing it into another lake say 30-40 miles away that also contains native LMB, is silly. The fish will adapt, just as it adapted to your home aquarium. For example, if it were so wrong to raise fish in captivity and then release it into a lake, state fish hatcheries would be responsible for the deaths of hundreds of thousands of fish every year. And if releasing a tank raised fish could be a cause of a new disease strain that would kill all the fish in a lake, then the state would have by now figured out that they shouldnt raise fry and then release them into the water system. I fully understand that common sense isnt exactly widespread these days, but a little of it can go a long way when dealing with this topic. Dont transport wild fish from one states body of water to another states body of water if the states do not have interconnecting waterways. Dont introduce non native species to ANY ecosystem. Sorry for the rant but I just get tired of some folks getting on here and belittling other people about this topic when the only reason they do so is because they saw someone else say something about it in a post they read somewhere. 
