i think raising it with tankmates could be very important and beneficial so i disagree with poly on that. raise a gator alone for a long long time, then toss him in with tankmates hes never had or delt with and all of a sudden your supposed to assume your tankmates are going to be safe? and gars are very spazmatic, so having the appropriate room for a spazmatic fish to me is very important. my lil guy in a 150gal with a 6'x20" platform was pinging off the sides and lid every time he was spooked. having the room available to spaz out is only a plus. i don't see having proper room to grow such as the wild ahem ahem causing stress or improper weak immune system... it just doesn't make sense