Coral feeding help

[Jordan92595]

I have

Kenya tree

Turbinaria

Acan

Clove polyps

Green Nepthea

Green star polyps

Pulsing Xenia

im wondering if I should be feeding any coral food for them or if I should solely rely on photosynthesis for growth.
My lfs said not to feed any coral food till you have 20 or more corals in your tank. Looking for others opinions on that..

 

[Oldsman]

The only one I would target feed 2xs per week would be the Acans . Everything else just eats from water column..but Acans love thawed mysis or bits of reef frenzy when their feeder tentacles are out. Most reefers use roids for feeding , it just blows my phos levels too high.
Nice tank too !