i have a baby bamboo shark hes only bout 6-7 inches long... alright, about bamboos when they first come out of ther egg they wont eat for awhile even weeks, so dont get scared about it, to initiate the feeding try ghost shrimp, thats what i did, i also did brine shrimp, my shark loves that stuff, he'll eat like half a cube by himself. once he starts eating that try and hand feed him guppies thats also what im doing right now (use rubber gloves), but remember the process to get them eating is very slow it takes time, but sharks are all diff. yours could eat right away, it all depends on the shark. overall ther very fun to watch. the only down side is they grow very fast and a good size tank is essential atleast a 180 gallon, but you said u have a 200 gallon so ur perfet, they get up to 41 inches long and grow atleast 9 inches a year. good luck
anyother questions about sharks IM me...LAZY EAST911
Jake