Duncan coral turning green?
Hi, I started my first saltwater tank this summer and have a lot of questions. I have a 32 gallon bio cube. It has been running for a couple of months and Iíve been filling it up with corals lately. So far I have a variety of coral, two emerald crabs, four snails, and a feather duster worm. Iím hoping to keep it as an invert only tank, but let me know if that sounds like a bad idea.
One of the first corals I got was a Duncan. For the first couple of weeks that I had him he was kind of white/tan with a little more coloration near the tentacles. Recently, it has started to turn fluorescent green on both the trunk and the polyp. Itís behavior hasnít changed at all.
A couple thoughts: the color looks almost the same as the reef energy plus coral nutrition food that I have put in the tank a couple of times, could that have any thing to do with it? Also, I have already made a few mistakes and unfortunately have been away from the tank for up to two weeks at a time because of work. I am most curious to know if this could be a stress response as I have heard of corals fluorescing when they are stressed.
Has anyone heard of this coral becoming tinged with a fluorescent green color? I feel like I may be missing something obvious. Iím eager to learn more and would love to hear what you all think.