Button Polyp changing?

[mebigloser]

My button polyp is changing from a brown into a green color, notice the base on it, it is getting huge. Any ideas?

 

[bdhough]

Corals do have the ability to change their color depending on their lighting and location. It all depends on the symbiotic algae they grow. A classic example is acropora which is brilliant under MH's and lack luster under lesser lighting..... Its possible your's like their lighting and are taking on a brighter more colorful zooxanthellae. Which is a good thing. Watch them so they don't shade the yellow button polyps. I've seen some huge zoanthids before. EDIT: looking again it looks like they are green button polyps which don't get THAT big....

 

[beth]

By chance did you get them from this site? They look exactly like the set of mix polyps/zoos that I got from here.

 

[mebigloser]

Nope Beth sorry, they came from a shop in Indiana.

 

[justinx]

I have the same corals, got em as a hitchhiker on LR. Mine do this periodically as well, but I cant explain whats going on. As far as the base spreading/enlarging, I am pretty sure this is how this coral spreads.
HTH
Justin

 

[mebigloser]

Thanks