SPS polyps not extending

[Sandroni]

I got 3 SPS frags the other day from the FHC live sale. They have a good amount of flow and have good lighting at the top of the tank. So I just checked my CAL/dKH Cal: 480 dKH: 10.7 SG: 1.025 I use Red Sea pro salt. Maybe it is my lighting schedule for my AI Hydra 26 HD??

 

[Coronus]

Well, if you just got the frags the other day. They should not be at the top of the tank already. They should be at the bottom. They need time to acclimate to your lights and tank. Putting them at the top their is a super high risk of unhappiness right away. Give them a week or more at the bottom. I place newbies on my Frag rack. Over the course of several weeks, based on color improvements or a decline, I move up or down.
Alk is high for my taste, so putting them up top could bleach them so soon.
It sure what no3 and po4 are, but won't matter right now. Move them down and keep and eye on them. If they start to color down, move up, if color lightens move down.

 

[jda]

Not having PE on acros that are a year old is nothing to worry about. Not having any on frags that are a few days old is beyond any kind of worry whatsoever. They frags may live or die, but PE is not a sign of anything.

 

[Coronus]

Check at night for PE. It might happen then. I have quite a few sps that have hardly any PE.

 

[Mattrg02]

How about when a coral starts with great PE, but then loses it in your tank?

 

[Sandroni]

How about when a coral starts with great PE, but then loses it in your tank?

They one frag opens just slightly, maybe they don’t have PE at all??

 

[Mattrg02]

They one frag opens just slightly, maybe they don’t have PE at all??

Litterally all my acros minus my WD started with polyp and extension and then none when they got to my tank. Even my milleporas lost their polyp extension.