Looking for clarification

[Kehaulani]

So I got this frag for $14. It had no name but I thought it was a sun coral so I purchased it. Can someone help me figure out if it is in fact a sun coral? It's black with forest green tentacles. I've had it for 4 days now and I haven't seen it open during the day. I target fed it pellets today and this is what it now looks like. Sorry pictures were taken with my phone.

Thanks in advance

 

[Tab28]

It looks like a black sun coral. They must be hand fed. They get no nourishment from lighting. Search how to feed them. They are classified as a NPS but literature is usually under LPS.

 

[jetmaker]

I have a orange sun coral they like very little light med flow yeah they can get use to a feeding schedule but if you feed the tank well they be OK the tenicles come out when the lights go out best under moonlight.

 

[Kehaulani]

OK I've noticed that once my blues come on it starts opening up. I have been target feeding it. I'm just confused about how much. Some thread I read said once a day, and another thread said 3 times a day, and another said once a week. Today I'll move it to a cave I have does anyone know about how much to feed it?