sun coral feeding?? need help!hungary coral here!

[TheWeaz]

Ok so I got a sun coral from a friend of mine. .I wanted to know, its polyps were exposed during the day but i thought for some reason you had to feed these guys at night?? Is that true.. looked like the polyps retracted once the lights went off? I wanna feed this guy so the polyps are exposed all the time and suggestions on feeding tips? Timing? mysis shrimp is what I was suggested to feed.. What's your opinion

[Loverotties]

You can train them to open in the day but they like it dark(mines in the shade).You can use a half a bottle over it as you feed.Mysis is what I feed them but I use a turkey baster with a rigid pipe down to them.