Devil's Hand discoloration

[HumbleFish]

I had to move this Devil's Hand leather (about a month ago) from one tank to another because it was getting picked on by a Lemonpeel Angel. Unfortunately, this tank is infested with flatworms (you can see them in the pic). This coral was doing fine, actually looking much better, until just a few days ago. Now it has these weird greenish blothces on it and also a hard spot (that you can't see in the pic). Anyone know what's going on? Could the flatworms be causing this? It has shed before but never looked like this. TIA

 

[RA]

It looks like detritus is building up in the lower areas. IMO you either need more flow or you need to take a turkey baster and blow off the stuff building up in the low areas.

 

[HumbleFish]

It looks like detritus is building up in the lower areas. IMO you either need more flow or you need to take a turkey baster and blow off the stuff building up in the low areas.

I think you're seeing the flatworms.

 

[RA]

I think you're seeing the flatworms.

No. I'm talking about the green areas on the leather.