Native fish tanks can be cool, but in my opinion you should only capture fish that are legal to take and that can be housed from juvi to adulthood.
There is no way you can realistically house 2 large mouth bass, unless you have a gigantic tank.
Many people will keep wild fish for a certain period in their home aquarium and then release them, but I kind of frown on that. First, the fish, once adapted to being fed in an aquarium, will no longer have their natural "street smarts" so to speak. Second, the fish are often undernourished and growth stunted if kept for long periods. Third, it is quite possible that the fish may pick up a disease during their period of captivity and then expose native fish to this disease once they are re-released.