A tank with 6' length and 24" width is the minimum for keeping these for life. That is the least amount of width you can have for these sharks(30" or more would be better).
You feed them meaty seafoods every 2-3 days.
Their tank should be relativley bare(compared to FOWLR and reef tanks) with a few succur rock structures they can hide if thy want to.
Anything else you need?