Can someone please Id this?!

[Omika]

I’ve had this three gallon tank set up for more than 5 months and my zoas were healthy but now there’s this weird white thing growing on it. They’ve been shut for a while and I don’t know what to do. Here are some pictures attached.

 

[tripdad]

Looks like hydroids, you can do a search on here for posssible cures.

 

[Katrina71]

Looks like hydroids, you can do a search on here for posssible cures.

+1

 

[sixty_reefer]

Zanclea hydroids similar to digitate hydroids. They a pain to remove. Normally only febenzodole do the trick to kill them. It’s a cat/dog dewormer. Unfortunately some soft corals normally get killed in the process. If you feeding any suspended food probably best to stop as that will only promote fast growing

 

[Omika]

Looks like hydroids, you can do a search on here for posssible cures.

Okay thank you