Sorry for using the dreaded names but without the name someone might think these are two different zoas. I had noticed before, in my tank that within the same colony some of the polyps looked different than the others but I always just noticed that some were bright and vivid and others seem dull. Well today it dawned on me that a portion of my colony is growing a yellow skirt instead of the bright green skirt.
I am sorry the pic is not all that great but I am using an iPad and don't know anything about color correction. Check it out and let me know what you think, these have all grown from the exact same frag that has never been moved since the day it was glued down. The zoas are on a rock that is inbetween two halides, so maybe one is aging slightly different than the other and causing a different color? I have no idea and just making assumptions.
I am sorry the pic is not all that great but I am using an iPad and don't know anything about color correction. Check it out and let me know what you think, these have all grown from the exact same frag that has never been moved since the day it was glued down. The zoas are on a rock that is inbetween two halides, so maybe one is aging slightly different than the other and causing a different color? I have no idea and just making assumptions.