Considering the size of the tank and the shark species which have been talked about here - I have the following advice.
Atlantic Sharpnose - Definitely Not - for reasons which have already been stated.
Blacktip Reef - possible but will outgrow this tank by the time it's an adult.
Bonnethead - Definitely Not - for reasons stated above.
Japanese Leopard & Smoothhounds - Possible if it's a temperate(60-70F) tank.
Whitetip Reef - Possible, at least until 4 feet long.
There are also many benthic species of sharks and ray which would be well suited for this tank - including bamboo sharks, epaulette sharks, wobbegongs, horn sharks, catsharks, round stingrays, bat rays, and or cownose rays.