About zoas...

[FishWife]

Moderators: please delete my other post. I put it in the wrong section.

 

I have my zoas mostly down lower in the tank and around quite a bit of flow; mostly laminar flow, too, not so much turbulent, because our jets are low in the tank. They don't seem to be thriving; some are even regressing. Now, one factor is that we have had temp swings (we're gearing up to purchase an ACIII soon) recently. But beyond normal water parameters and what are optimal conditions for zoas in terms of light and flow?

[gastone]

IME different zoas like different conditions. How's that for cut and dry? Put them where they are happy and they'll be fine. Ha.

 

As with most corals I would start with low to moderate light and low to moderate flow and acclimate them to where you would like them to be. They will let you know when they are unhappy. Certain varieties can't take high light IME: PPE/NG/PD/Tubs (anybody else got any other "catchy" names?).

 

Look here. Snake oils usually aren't my thing, but after a fair amount of research I tried this as a frag of Tubs that I had gotten from Rik quickly grew from about 10 polyps to 25. They then started to not open and then disentegrate, despite no environmental changes that I was aware of. Within a few days of starting with Vitamin C the polyps started to re-open.