When do you feed your corals ?

[gregzz4]

I've just started keeping some SPS, Zoas and a Frogspawn
I currently have no fish in the DT to feed, so I'd like to keep the corals fed
The Frog and Zoas close up after lights out, and some, but not all, of the SPS polyps recede

I suppose I could feed once daytime, and once after lights out, but there's nobody left to feed at night

I've read differing ideas as to when to add phyto and would like to know what you all do
Ie;
Do you feed during the day whenever you feel like it ?
Do you feed after lights out ?

Thanks for your input