Mine, with five guys in it is doing well after six months. I have it on the sand. The worms seem to like moderate flow as they are filter feeders (their mouths are on the bottom opposite the gills) I've noticed my green porites are starting to fill in again as it was almost dead when I got it. The porites need light, but don't seem to need a lot.
My worry with these are you can't dip them because worm, so be very careful about hitchhikers. This would be a good candidate for a quarantine tank I'd imagine.
I don't spot feed. I broadcast Reef chili and Reef Roids a few times a week and Marine Snow on occasion. I have a clam, so I believe they eat the same grub.
Do you have a photo of yours BlennyKravitz? I would like to see a pic of yours.