I have one rock of GSP and one rock of the branching type of metallic star polyps. Both were opening everyday for about a week after I got them and now they both will only open about halfway every other day or so. What can I do to get them to open fully everyday. I am trying to frag and it is hard to frag if they aren't growing very fast. Also, how much flow do they need over the coral itself(how close to my maxijet-600 powerhead)??? PLEASE HELP!!!!