i've had a sun coral for about 5 months now and it's doing great, i feed mine once per day, about 5 or 6 days a week, i feed him frozed brine w/ spirolina, mysis, plankton, and chopped krill, i spray him with dt's phytoplankton occasionally, how i do it is with a plastic syringe (the type you get from the dentist when you have a tooth removed) i cut the tip back a little to make the opening bigger, and thaw out the food and suck it up in that device, i spray it just a little at first to get all the polyps to come out all the way then i feed the whole thing.... mine looks great. polyps are extended all the time, looks so good that sometimes people think it's fake.... i heard alot of things about them being hard to take care of, but my target feeding method seems to work great. good luck