We purchased a small zebra eel about three weeks ago from our local petstore he is about a foot long. HE WONT EAT ANYTHING! we have had him in a quarintine tank for the first two weeks with hypo salt to make sure he is ok before we put him into our big tank. Now we have moved him and raised the salt a little more and he is in a 20 gal all by himself for about a week and he still wont eat we offer him dried krill and raw shrimp and shows no interest in any of it. i know zebra eels can go long periods of time with little or no food but he looks weaker and isnt swimming around much anymore. Any sugestions?