I find they like a few hours of full spectrum lighting,doesn't matter when but I find they get fuller heads. Good amount of flow helps them fluff up as well.
At one point and time I had about 30 mini colonies in my old nano. Many ranging from 2-3 heads,some were singles. I found that spot feeding each frag at least 2-3 times a week if not more.
I was ranging 1-3 a month with light feedings,and when I stepped up feedings to 3 or more a week,they exploded. I started getting double the growth. I was feeding a mixture of LPS Max,Reef Roids,SPS Max,Rotifer eggs and Oyster Feast all mixed up in a shot glass and would literally spot feed every head,time consuming but I made sure everything got food with little to no waste compared to just broadcast feeding.
They do appreciate higher nitrates,with just a trace of phosphates. I always usually kept mine at about 150-175 par.
Again,this is all in my experience.