Very interesting thread! I now plan to get an aquarium to put a few of the BG I just released into my pond to watch them grow. I may also put a LMB in when I stock those as well.
Keep in mind that LMB do not play well with others. You can keep one in a tank but they get very aggressive once large. If you have two in a small tank (anything under 100 gallons probably), one will kill the other. If you have a BG in there, the BG better be big enough to take care of himself or the LMB will kill the BG even if he doesn't eat him. The LMB will beat the snot out of anyone who gets in his area once he gets to 6" or so.
That said, I do have a large tank (240 gallon--only half is water tough) with a lot of bass and many panfish. There are too many in there for the fish to get too aggressive. If you reach "overcrowding" I think you can avoid the aggressive issue but they grow so fast that keeping them the right crowded would be difficult.
