How often should i feed

Hi there,

I currently have x1 Goby & pistol shrimp, x3 hermits, x6 snails, x1 Bumble bee shrimp and around x12 corals of variety.

I dont know how often i should be feeding??

i am currently offering reef roids a tiny pinch mixed with tank water
or

Small pellets,Mysis shrimp

Probably three times a week, normaly at least no more than .2 of a gram at each feeding

Does this sound correct?

Im concerned as havent seen my bumble bee shrimp in a few days and some articles say daily feedings for him?

any advice will be greatly appreciated