Baby dat won't eat

Picked this guy up yesterday..he's very active and not shy at all so far..guy at lfs said they were on frozen bloodworms..he keeps spitting the bloodworms out..I tried frozen brine shrimp and he won't try it...would frozen mysis shrimp be better? He's very thin hope he eats soon


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He's not acting stressed at all, actually the opposite he follows me around the tank like he's expecting food but spits everything out..I'll try krill


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Ok so I've had the dat a few weeks now and he still won't eat anything but live black worms...I've tried frozen everything,market shrimp, tilapia, even threw some guppies in there..nothing..anyone have any suggestions? He's barely an inch I don't think starving him will work until he eats


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