what supplements would you use

[reefnut]

well my tank presently has various star and mushroom polyps and some anthelia that are not growing at all in fact they have slowly shrunk over the last 6 months and a large condy that is doing great gettin really big.My water quality is great and my baby copperband and fire fish are doing very good.So what am i doing wrong for the polyps?All i do now is phyto, coral excel and water changes levels are good calcium is 460.