I was on live aquaria yesterday and found that they had a coral catshark in their Divers Den Section. They said its minimum tank size is 500 gallons and yet they also say that the minimum tank size for a marbled bamboo catshark is 180 gallons even though they are twice as large as the coral cat. I only shop their because their stock is ALWAYS top quality. So is this information true or have they gotten something wrong AGAIN?