I'm not sps professional so I think I might need a hand in letting me know what's going on with this acropora..well it's still the same colour from when I got it..it's like a tan stem with light purple blue tips..it's polyps are always out..and recently I've noticed the rings around where the polyps come from are becoming Fluro green and the base is a dark green in colour..(where the bottom of the colony is) I'm not sure what colour it's suppose to be but I've sourced a few pictures from some places which stocked the exact same acro..gives you an idea of the tan blue/purple tips I'm talking about..as I'm not sure if its browning out..
This is my colony:
Other colonies I've seen:
This is my colony:
Other colonies I've seen: