Zoanthids not opening

[MattB6817]

I’m newer to the hobby and I’m trying some only my first corals. My first zoanthids from one of the latest WWC live sales isn’t opening up. I got 2 different zoa frags from the sale and one I believe is dead but the other looks alive but not opened up. Pictured on the left is a Blues Clues Zoa and on the right is the Metallic Pink Zoa that I believe is dead. If anyone has any idea how I could make this coral happy and open up, please help me out.

 

[AcroNem]

How long have you had them? One I'm not seeing polyps so might be dead. If they're new, they can take a while to open after shipping. Also better flow can help them open as well as keeping them clean

 

[MattB6817]

I’ve had them since the beginning of May. Would it be a good idea to move a powerhead to flow over the top of them?

 

[Crabs McJones]

Where are they in the tank? and what lighting are they under? Zoas are low light corals so being on top of rockwork may be too close to the light.

 

[MattB6817]

They are are on a rock towards the bottom of the tank on the far right side. I have two black box led light on the tank.

 

[MattB6817]

I just tested my water and are wondering if these numbers are acceptable for the corals.

Salinity - 1.023
Ammonia - 0.15ppm
Nitrate - 10ppm
Nitrite - 0ppm
Alkalinity - 8.1
Temp- 79F

With my salinity, I haven’t check in awhile and I know that is low. I will be bringing that up to 1.026.

 

[Crabs McJones]

What test kit are you using? In a cycled tank you shouldnt show any ammonia

 

[MattB6817]

I’m using salifert test kits And a Hanna checker for alkalinity and I just realized that I recorded the ammonia wrong from my AquaticLog app. There is 0 ammonia. Could the low salinity be the reason the zoas aren’t open?