Closed zoa

[Carolina79]

Hi all, I noticed yesterday that these Zoas are closed and there is what I think is a hydroid touching them. Could this be what’s causing them to close?

 

[Hallowhead]

Could definitely be something bothering them, it's interesting as the zoanthids right above seem to be fine. Keep a close look use a flashlight with lights off to examine closer.

 

[vetteguy53081]

Hi all, I noticed yesterday that these Zoas are closed and there is what I think is a hydroid touching them. Could this be what’s causing them to close?

Hydroids can irritate them or even dting
Direct water towards the hydroids, not at them which will cause them to starve
Moderate light and feed them (zoa)mysis shrimp
Hydroids prefer brine shrimp as a meal
Assure nitrate and phosphate not elevated and salinity 1.025 range