Brown Star Polyps turning green

[db366]

So I have a large colony of brown star polyps and a even larger colony of GSP, they are about 2 inchs apart now since the GSP is well over a foot long and today when I looked at my brown star polyps the center of the colony is turning green, some of the polyps are green others are half green half brown. Really crazy looking. Anyone else ever have this happen?

 

[KrisDeitz]

I had just Plain ol teal palys turn green then brown and now green again