id be careful with the blue hippo tang. not sure if you are just starting off in the sw
side of it, but id recommend giving the tank some time to stabilize before adding the hippo tang. they are absolutely gorgeous fish and are worth the wait. however they tend to fall ill to sickness and stress more frequently than other fish. that being said, if you give the tank some time to smooth out, then introduce one, you shouldnt have a problem at all. and congrats on the great steal!!. also please, for the sake of the mountain of money you are about to sink into this obsession (its a good thing
) please qt your fish.
also in terms of stocking, its really dependant on what you want to keep. spend some time searching through liveaquaria and write down all the fish you may want. then come back here. we can help to eliminate any less than ideal fish from the list.