I have a 75 gallon aquarium with a 20 gallon sump. The sump is divided into 3 chambers, protein skimmer to baffles to refuge to the return section. I added cheato about 6 weeks ago, when I got the cheato it was in a tight ball shape, dark green with a firm course texture. The cheato has now lost the ball shape, fell apart all pver the sump and the texture has changed to a soft mussy texture. I have a 65 watt power saver full spectrum bulb which is on a timer to cut on for 16 hours a day when the display lights go off. I have a 3 inch sand bed in the refuge and about 5 turbo snails. Any ideas why the cheato has lost its dark green color and course tecture? What do I need to do to correct this? Thanks in advance!