any opinion wanted

[roons]

http://www.reefcentral.com/forums/showthread.php?s=&threadid=854294

 

[Azurel]

I would move them up and see what happens, I don't have any experience with T-5 lighting. I would look more towards water quality first before the lights causing them to shrink in numbers. the fact that you have less lighting shouldn't be a serious stresser on the polyps themselves. Have you checked for parisites? Nudis, sundial snails. What are you water parameters?
Give us a little more info and we can try to figure it out step by step.

 

[roons]

no nudis in tank, dont know what a sundial is but i never see anything on them, parameters are always in check, i run ozone , orp is 340-370 most always...............

 

[Azurel]

Here is a link to what sundials are:
http://zoaid.com/index.php?module=pnGallery2&func=main&g2_view=core.ShowItem&g2_itemId=424

What other inhabitants do you have in this tank?

 

[roons]

nothing like that in there

2 peppermint shrimp
2 skunk cleaners
flame angel
powder blue
yellow tang
algae blenny
3 lyretail anthias
3 oc clowns
six line wrasse
scarlett hermits
trochus, cerith and nass snails


and a mystery crab with black and white striped legs that lives in a cave that i cant get, but hes never outside the cave ive looked for months now , never see him

 

[Azurel]

Have you witnessed your Flame angel picking at any of the corals. I know that they can have a taste for coral, on the rest of the polyps that open is the skirts missing? If your water is testing out fine then I would have to lean towards a predator or a fish picking at them which wouldn't allow them to open up.

 

[roons]

skirts are fine, no i never have seen anything going on...........blowing sand annoy them?

 

[Azurel]

That is a possibility, what is blowing sand around them on them? It's kinda tuff not actully being there to see them....Have you ever tested for silicates?

 

[roons]

blowing sand sometimes covers the rock where there isnt any yet, i was wondering if this would keep them from spreading................no i dont test for silicates

 

[Azurel]

I had some issues with silicates that caused my zoanthids to close up for about 2-3 weeks till I found out the silicates were high. I used seachem phosgaurd to bring it down. Once it came down they all opened back up. You using RO/DI for water changes and top offs?

 

[roons]

oh yeah , 0 tds , phos is 0 but that doesnt mean there isnt any in tank as i have a dsb , which i wont do again...........here are a couple pics, this rock was half covered when i got it on jan 21..............the first few days alot detached but alot more than what you see here were left...............