i just did a search and found a few pictures your looking for, i cant repost them however cause thats a bit rude to use someone elses pictures, and i cant tell you how many times ive been caught plagarizing in school I LEARNED MY LESSON
They obtain a maximum size of about 27 inches so I think your 250 would be a good home for a marbled cat shark if you could find one.I have been looking for one for about 9 months and still have had no luck.My LFS had one a couple years back but I was just getting in to sharks and they have not been able to get one since.