I currently losing the battle to hydroid, I believe the branching ones. Honestly didn’t even know it was something to look out for. I don’t know how they get introduced, but noticed them around 6 months ago. From what I have read, zoas are in the most danger. They have made it to my zoas island and they are taking them out. Has anyone had any luck getting rid of them? The only treatment I seen was fenbendazole but would have to remove all my inverts for 30-60 days? What would you guys suggest for plan of action?