Zoas Closed

[Spyderturbo007]

My Zoas were doing great for the last week or so since I got the new frag. Now today for some reason they are all closed. I haven't changed everything and as of Wednesday all my tank parameters were spot on where they should be.

I have other Zoas in the tank that hitchhiked along with my live rock, but they look fine. The new Zoas were dipped in CoralRx before going in the tank. The only thing I can see that looks out of the ordinary are a few tiny little translucent things crawling on them. They almost look like shrimp maybe 2mm in length. They are very small and move pretty quick. Unlike the Nudibranchs I did away with a few weeks ago.

The hammer coral I have is doing fine so I'm almost positive it's not a water quality issue. I haven't fed them anything because I didn't know if I was supposed to feed them or not. The only other inhabitants in the tank is the CUC.

They are just way to small to get a picture of the shrimp things.

Any suggestions?

 

[tyler1012]

Yea, there are some pest "shrimp like" creatures that will just destroy your zoas. If this is the first time you ever noticed them, then you may have brought them home from the fish store by accident. even if you dip your corals before adding them to your tanks it is still possible for aquarium pests to be brought home. Phytoplankton and even mysis shrimp can be fed to your zoas to make them grow, spread, and bring out their color. hope this helps

 

[650-IS350]

see this for potential predators or irritants of polyps

http://www.coralpedia.com/index.php?module=Gallery2&g2_itemId=384

 

[Spyderturbo007]

It looks like this thing but mine seem more translucent and smaller. Although there isn't anything in that picture for me to gauge size. How do I kill them? My other Zoas have been in the tank for about 5 weeks and have never been bothered by them.

Amphipod