Hey all, Lately I have been noticing some problems with my euphyllias. It started when I changed my water flow. At first all of my LPS seemed to not mind and it hugely benefited my SPS corals PE, but then about a week later I noticed that my gold torch wasn't opening as much. Noticing this I tested my water and saw that nothing was out of the ordinary. I figured that i would give it a few days and see what happens. A few days later I was looking at the now partially exposed skeleton of my gold torch and I saw what I would assume was brown jelly. Around this time I also noticed that my blue hammer wasn't opening as much as it was a few weeks ago. I decided to iodine dip my gold torch and lightly brush the brown algae like growth off the skeleton. The brown growth has not came back since but it has continued to not open the way it once was. Now I am noticing that one head on my purple torch is not opening as much as it was either. I'm not sure what could be going on in my tank. The strange thing is that my parameters are good every time I test and my SPS are growing great and have great PE. My parameters from two days ago: No3 elos- undetectable Sg refractometer- 1.025 alk- 8 Ca- 420 Mg- 1400 temp- 78 ph- 8.1 - 8.3 My parameters have been solid over the past few months so I don't think its anything that I can measure. I dose a variety of different supplements including: 2 part Magnesium Strontium chloride Potassium Potassium iodide Amino acids Vodka KZ macro elements I hope someone has an idea of what might be the problem. I don't want to lose any corals. Thanks in advance.