FS coral pls need help

[nona]

I desperately need help with my new FS coral, this is my first time caring for it and it’s been about a month and he’s been fine until two days ago he looks deflated. I’ve been feeding him and doing water changes weekly with good #s.

 

[T-J]

Age of tank.
Lights.
Flow.
Water parameters.
Please post all of the above so we can start to help.

 

[Yazannreef]

It could be a lot of things. Please post up more details as requested above