Hydroids and new tank

[Coach_M]

i have a 10g I’m about to transfer to a 50g. My frags have some kind of hydroid that spread relatively quickly. I was told they come and go, but they’ve only seemed to spread. I’m getting ready to move my corals over but would rather not move the hydroids too. What’s the best route? Dump the corals and start fresh? Manually pick off as much as possible?

 

[Fallling]

I have hydroids and they've started become a problem for my zoas and dendros. I'm going to try fenbendazole: https://www.reef2reef.com/threads/here-it-is-fenbendazole-use-against-hydroids.214950/

I don't want to do my whole tank, so I'll be taking the zoa garden rock/boulder out and treating in a separate aquarium (or bucket).

 

[Coach_M]

I appreciate the link to the thread! I’m almost tempted to sell the frags. Because most are on plugs I may just scrape them off and cross my fingers