Colonial hydroid control?

[TheAquarian]

wht eats colonial hydroids? I have a few lr with them on it and I haven’t had much luck with removing them other than is seems to slow their spread.

 

[Big G]

https://www.reef2reef.com/threads/here-it-is-fenbendazole-use-against-hydroids.214950/

 

[TheAquarian]

Interesting, have you tried it. Thank you for the info!