Yep, you can feed a lion heads of lettuce super charged with nutrients to keep the thing alive, but you have "deprogrammed" the "thing". It is no longer a lion, but a piece of poop circus cat that could not possibly survive if released back into the wild. Gezus dude, why the F' is it that it is SO rare that you can return a wild animal to its natural environment after human intervention into their life cycle. WE DEPROGRAM THEM for petes sake!!!
Fish MAY be slightly less impacted by this than mammals by our intervention, but not unaffected. Hell we have taken the ability to survive in the wild from ENTIRE SPECIES. Believe it or not, at one point in time "DOMESTICATED" big word dogs were TOTALLY self sufficient and existed on this planet in the wild WITHOUT mans "help". No we don't "de-program" animals! Please.
After two years in the hobby I will NEVER consider myself an "expert", however from a lifetime of experience as a fisherman, some of the "expert fish keepers" thought processes on WILD fish is SO skewed that it is slightly frustrating from time to time srossing over between the two distinct ever so slightly related "hobbies". I know I have much to learn about fish keeping, but you could use some additional ed. on wild fish.
The ABSOLUTE extreme norm in the PROHIBATIVE vast majority of egg layer fish is that they are unable to develop adequate hunting skills to survive in the wild. These juvinile fish will perish in the wild. Fact! That is the reason that they have like a hundred times the number of spawn that are required to continure the population. No question the extreme vast majority fail to develop hunting skills and require ten gars to hatch to get one to "possibly" reach maturity in the wild. Not only do you take the gars ability to survive in the wild away by NOT allowing it to develop the necessary hunting skills as a juvinile, you make it IMO a guppy with a long nose and pointy teeth.
I must be the "unluckiest" guy on the planet. I must have personally seen a dozen or more DIFFERENT baby birds that NEVER learned to "INATELY" fly and splattered. Heck, birds don't even have 100 chicks even though "flight" their "Nature" is not "inate".