feeding a feather duster

[heckfire]

i got one today,, i have phytoplankton i put in once a week and feed my 3 small fish frozen brine or flake every day,, think that will be good enough for the feather or should i spot feed him the brine every few days?

[shrimphead]

i think the brine shrimp will be too coarse for him to filter out, they only filter fine particles really, phytoplanktons good but he would benifit of some kind of zooplankton too.
not sure if feeding once a week is enough? might be tho? what type of feather duster is he?