and are you sure its a japanese?? its not easy to tell the difference int he two especially when they aree juvi's.. although their coloration is a bit different i wouldnt trust that this is a orectolobus japonicus( jap. wobbie) im actually willing ot bet on it that it is not a jap. wobbi because they are SOOO hard to get int he trade.
you also need a chiller for this species , along with a species only tank or they will try to eat EVERYTHING.. this isnt a good thign because if they eat somethign to big they get gas in there alimentary tract and then they will float around the tank until they either die or throw up...
IMO this isnt an species for the begginner.. you must watch you dont overfeed.. they fast alot,, they are heard ot get to eat at first.they eat large things like tangs, triggers,eels , sharks, rays etc. etc they are al very unpredictable and will latch on to anythign near their mouths.. this means dont clean your aquarium!
although an awesome shark i dont know why anyone would want one ina home tank?? :notsure: