dwarf zebra lionfish eating?

[manaf]

hey

so i have had this zebra dwarf lionfish for about 2 and a half months feed him 3 minnow feeders the first 2 weeks then he hasnt been beed fed anything since then i tryed feeding frozen to get him switched but havent seen him eating anything but thing is its been 2 months with no food but his stomach is not concave and hes really healthy swimming around , could he be eating stuff in the tank?

Thx