My female mandarin

Looks Very healthy my question is what size tank do you have that fish in? and is it a ORA eating mysis or is it standard eating copepods naturally?

Right now for training purposes she's in an 8 g evolve. She eats copepods but also eats nutramar ova like a champ, and will eat the occasional brine shrimp. No mysis, they're too big for her. She's quite small, only about an inch and 3/4. Soon as she's rock solid on eating frozen she's going into my 39g