button polyps

[Ecas32]

hey guys!
all my corals in my tank are doing great, except for two button polyp frags i have. they wont open for anything and then if i move them into the shade they will open up kinda halfway. i dont have a super bright light, just an aquatic life 4 lamp and have had the corals for about two months. any suggestions?

i will post pictures in a little bit
-ethan

 

[Ecas32]

the pollyps in the back of this one are under shade:

this one was out in the open:

 

[Smitty]

Sounds like you answered your own question...some zoas prefer the shade, and some prefer lots of lights. So keep them in lower light, and see how they do for you. :)

 

[Ecas32]

ok thanks smitty.
Also- I have a zoa frag that has been doing really well and growing very fast but then all of a sudden one day, the lower half of it that recieves less light started staying closed. I would try and pry it up and fix it so all of it is in direct light but it has started to grow out onto the rock. Any suggestions?

 

[Smitty]

You should probably leave it...especially if it's growing and thriving well where it's at.

 

[Waddi]

Did you acclimate them to your lights? Or are they not that new?

 

[RyanG]

It could also be a flow related issue, zoas/palys have widely varied lighting and flow requirements.

I have similar "button polyps"(protopalyathoa) that LOVE high flow and high light. you might need to experiment with your placement.

 

[Ecas32]

alright, thanks everybody. and ya waddi, theyve been in my tank for about 5 or 6 months... but i did just switch from a 2 bulb fixture to a 4 bulb?