Frogspawn trouble

[DeepSea1]

Hello everyone, I have just introduced a Frogspawn and Hammer coral to my tank. My water parameters are all good, with the exception of my phospates which are between .25 and .5. I have trouble with the colors. After a few days my Frogspawn has retracted its tentacles, not fully closed but close to it. What could cause this?

 

[KrisReef]

Too much light, or too little,
Too much current, or too little
Brown Jelly Disease,
https://www.reef2reef.com/threads/e...ic-treatments-for-brown-jelly-disease.782438/