it is brine shrimp that you are thinking of. If you want to try to feed him something in the water I would try some feeder guppies. The brine shrimp are not big enough for him to notice. I would not feed meal worms instead I would get some small crickets or if he is really small get him some pin head crickets. You will have better success if you do not put to many in at once crickets can stress out young reptiles if they feel over run with crickets. If he dos'ent eat take them out wait a day and try again. Good luck on feeding the little guy.