Diagnose Zoo Problem

[Alaskan Reefer]

I brought this colony rock from my 75g and into my new 125g about a month ago. There are four different variations on the rock, and all are open except for the largest -- which are blue. In that colony, about 4-6 of the 100 or so are open now (weren't before) and I'm wondering what the problem might be. I'm relatively novice on zoos so if the answer is easy please give it! Thanks.

 

[Zoalander]

Is it in stronger lighting? I've noticed my blue zoos like lower light then all the other zoos and they do take longer to open then my other ones.

 

[Alaskan Reefer]

Vetter1980 -- that has to be it -- the blue ones that are open are in the shade provided by the cave above. The lighting fixture on them is the same, but I just replaced all the bulbs so the intensity is quite different. New tank, more intense light -- I guess I should just be patient.

 

[pimpskinny]

the closed zoas on top needs more lighting. your light sux