LuvaBetta

I'm a reef tank newbie, trying to take everything sloooow. About 6 wks ago I bought a colony of 2 colors of zoanthids, a purple mushroom, and some star polyp, kind of a wavy, pinkish-tan coral with purple centers. Yesterday afternoon I noticed the stars had closed up. I've never seen them closed during the day, and this morning they did not open up. I have two other colonies of different star polyps but they're fine.

Can anyone think of something that might be wrong? It's a 24g aqua-pod, I last did a water change about a week ago. I went ahead and did the wc I was starting when I noticed the corals.

The tank also has another purple mushroom, and a kenya tree, some snails and a couple of damsels.

agsansoo

I would suggest putting more water flow over them. They like moderate flow. What type of lighting do you have ?

LuvaBetta

I do have a koralia powerhead I can work with...

My lighting is, according to the AquaPod makers:
One 32 watt Dual SunPaq Daylight, one 32 watt Dual SunPaq Actinic and two Nocturnal Blube Lunar lights
However, the coral isn't directly under it, it's on a live rock that stands upright in the sand; think of maybe a dinner plate on edge. The coral then is on the plate surface. That would put it about 90degrees from the lights. There's still a lot of the light on them, though.

Thanks for the suggestion! Anything else that comes to mind I'd love to hear!

agsansoo

Lighting is good ! Keep us updated on their progress.

LuvaBetta

YAY! The polyps began to open again on day 9. About half of them opened. At least they haven't died!
Do I need something additional in the water or sand, phyto- or zooplankton? krill? Animal, vegetable, mineral? I really want these to thrive.

I'll post pictures tomorrow.

agsansoo

Fish poop and try frozen rotifers. I like Coral Frenzy too ! Phyto and zooplankton are good also.