Tonight has been a..different night.Today was my friends b-day,and he is an owner of an lfs.we have been friends since high school.So he was giving a few of his "special" co-workers and friends cool little fishies.But he didn't give me any "cool little fishies".Instead,he gave me a big fish!Before I tell you what,I only have two tanks,because I've had to give away two(my 30 and 55,including the fish).So I only have my 180 and 800(both SW).Anyway,he gave me...oh mfkers please don't hate me...a blacktip shark.Trust me,I refused it at first,but due to some complications(I would prefer not to list what) I took it.Now I had done some research on these guys,so it's not new to me.I don't have a 30,000 gallon tank!And how will I relocate this monster?No one is going to want one,and public aquariums around here certainly don't even have the right setups for this species.He is about 18".He is swimming right now.And I don't want to kill this beauty.Anyway,my question is:How long could he last in this tank?I'll see if anyone with a tank to house this beast around the area will take him.But for the time being,he is in my 800 gallon.Help me 