Zoa folding in on itself

[saltwatertabk]

The top red one Is it bleaching? Not sure what is up with it just folded in on itself today also I noticed a month ago around the edge of the zoa it is whitish not full red looking like it was before it happened. Every other zoa in tank is doing perfectly. Thanks

 

[TX_REEF]

possible to get a closer clear pic? If it's just one having problems, you could try a dip.