Frogspawn dying please help

[JACKS REEF]

So a couple day’s ago my coral was either pooping or showing signs of stress by repeasing brown stuff. He looked good the whole week after that and he looks like this at night. Btw this is a frogspawn coral. Is this normal for it to look like at night.

 

[JACKS REEF]

So a couple day’s ago my coral was either pooping or showing signs of stress by repeasing brown stuff. He looked good the whole week after that and he looks like this at night. Btw this is a frogspawn coral. Is this normal for it to look like at night.

 

[Kryptonian]

My frogs show their skeleton every night. Standard retraction. Not every frog does this but almost everything in my tank retracts a bit when the lights go down. Nems, hammers, frogs all retract. As far as the brown stuff goes, not sure there.

 

[Bumble bears mom]

My frogspawn does that from time to time but not since I put a 2 hour only blue light time at night now he stays colorful. I use moonlight the rest of the night and I reduced my uv light spectrum to 70. Hopw that helps