Zoas not fully opening anymore

[ryguy886]

So I have noticed that over the past week or two my Zoas have not been fully opening. Up until now the colonies have been doing great! I have 6-7 different colonies and they were all actively growing and spreading over the live rock. Any ideas on what could be happening?

Tank Information:
150 gal reef
salinity = 1.025
ammonia = 0ppm
nitrite = 0ppm
nitrate = 5ppm
pH = 8.2

I do weekly water changes (35 gal) and use aqua-vitro salt. I recently had two frags of SPS acropora bleach out for no reason......?

all other sps and lps coral and fish are doing great.

Open to any ideas??????

Thanks,
Ryan

 

[A. Grandis]

We'll need more info that…
Alk?
Mg?
Lights?
Temp.?
Maintenance schedule?
Flow?
Fishes?
etc, etc…

We're not psychs here! LOL!!!
Grandis.

 

[reefguy24]

Coincidental or not....my zoas stopped opening for a few when I added tigger copepods.

 

[A. Grandis]

Coincidental or not....my zoas stopped opening for a few when I added tigger copepods.

I would say coincidental.

Unless they are still digesting them. LOL!

Grandis.

 

[reefguy24]

I would say coincidental.

Unless they are still digesting them. LOL!

Grandis.

I just figured the tigger copepods were molesting my zoa.

 

[Guss]

every time I have bought zoas this is what they do also. The only ones I have been able to keep are the ones that hitchhike into the tank.....following along

 

[Duvallj]

Do you have a picture?

More times that not when my zoas stay closed its due to some irritation. I just blast them with some water via pipet and see if any debri/coating is removed. Afterwords they seem to open back up.

 

[Boston21]

Could hermit's be messing with them or a crab? Sometimes hermit's bump into mine and they close for a few minute's then open right back up.

 

[A. Grandis]

I just figured the tigger copepods were molesting my zoa.

Oh, you've got the live package version.
They wouldn't arrive live here in Hawaii, I've tried.
I didn't know they would attack zoas.

Grandis.

 

[Boston21]

Tigger copepod's attack Zoa's? :O

 

[willfly4food]

Check for zoa eating nudibranchs. Mine were closed up for about 3 weeks and I figured it was my crabs crawling on them and then I thought it could be my levels in the thank but it ended up being the zoa eating nudibranchs. So I started a dip process on all my zoas. I found eggs and a adult nudi.

 

[willfly4food]

Here are some eggs

Here is the nudi