Blue Zoanthids - Closed for several days (1 Viewer)

[YakAg]

I have a 135, NH3-0, NO2-0, N03-<10, Ca=450, the Zoos closed last week and have not opened in 5 to 6 days. Under magnifying glass, there are small Amphipods? crawling around the frag rock, but not on the zoos. There are Palys, Duncansoma, Tubastrea, Plate coral. one set of Palys and a group of star polyps are within a few inches of the blue zoos.

Any idea why these guys remain closed and what action I should take?

 

[Timanator]

Do you have alk swings between night and then?

 

[YakAg]

I have not checked. Not sure why I would. None of the Palys are showing this behaniour.

 

[Timanator]

i have the same issues at times even thought another frag of the same thing might be open in the same tank. Are they just closed or are they looking bad?

 

[YakAg]

They are just closed. I actually moved them away from some other corals and deeper in the tank. One has opened. I also added Vitamin C. Finally, to aid in battling any chemical warfare, I have added a small amount of carbon to the filter.

I have been told that Blue Zoos especially are difficult. Particularly from the Caribean.