Feeding corals?

[chetscc]

I was wondering if I should feed my corals directly or indirectly by adding food to the water column? What are your thouhgts?

I have some SPS, Acans and zoas.

The reason I ask this question, is that my acans and zoas are not doing so great but my SPS corals are.

Here are my parameters;
ALK 9.6
MAG 1320 PPM
Cal 430 PPM
PH = ?
Nitrates 2.5 PPM
TDS in RO/DI water = 0 PPM
Phosphates near 0 definitely less then 1 PPM

Thanks in Advance!

Brandon

 

[Sugar Magnolia]

DT's phyto, cyclop-eeze and golden pearls are what I feed my tank.