sulking

Hi reefers, Just a beginner here and set my tank a few months ago. I went on a trip and came back to tank with extremely high phosphate (0.50 ppm). I got the level down to under 0.10 and all the other corals are normal now except for the alveopora. It hasn't extended its polyp for a couple...

I've had this hammer since mid September, and its never opened up more than It has in its first week. It looks nowhere like it did at the swap when I bought it (it was bicolor, blue and green) The first photo is day one in the tank, and the second is today. The last month or two has been...