I have a Green Blue Umbrella Mushroom that has been doing wonders in my tank for 2 months now all of a sudden looks like it is semi closed. I did a water change, but this was before it. I alsso have 55 Gal
. Wet/Dry filter, 260watt Compact Lighting, 50lbs. live rock, 4in deep sand bed live sand with crushed coral and fine live sand. I have feather duster, bubble anemone, frog toadstool anemone, sun polyps, few other types of polyps gotta post more pix
What can be wrong?