Zoanthids need help

[SlySzy]

I'm having an issue with my colony of Zoanthids they start to demise :( I had no idea what could possibly cause that some of the polyps won't open. Suddenly I've found tiny slug-like creatures pinkish in blue light. Does anyone have an idea what it can be? And how to fight it???

 

[Hdgutierrez]

It's hard to say based off of the pictures, better pictures will help. Based off of your description it sounds to me like zoa eating nudis. If it where me, I would do a dip of all zoas in that system every couple days for a few weeks.

 

[SlySzy]

It's hard to say based off of the pictures, better pictures will help. Based off of your description it sounds to me like zoa eating nudis. If it where me, I would do a dip of all zoas in that system every couple days for a few weeks.

Thank you for your reply but definitely, it is not a nudibranch. I will try to attach a picture under a microscope. Regards S.

 

[Hdgutierrez]

Interesting! I am not sure what that is, possibly some kind of flat worm?? I would dip it and use a turkey baster to blow off any pests.

 

[James_O]

@fishguy242 @vetteguy53081 ?

Doesn't look like any nudi I've ever seen.

 

[vetteguy53081]

Pulmonary sea slug. They’re upsetting zoa as they don’t eat them but emit toxins. They have to be physically removed.