Is this real Stratosphere Zoa?

[DNACollector]

I got stratosphere zoas from a friend. At the beginning, it looks like in the pic 1. Then I increase my lighting, and now it looks like in pic 2. I noticed that the gold ring is much thicker than before. Is this normal? Thank you in advance!

 

[tbrown]

When lighting intensity or spectrum changes, there can be some color shifting or color morphing in some corals. Zoas are one of the more common that shift I believe.