ElectroKate / Kim....
Do you have pictures of your Hydroids? I'm wondering if they are the same pests I have been fighting for a year now? I'll try and snap a few pictures to night and post them up. In all honesty it is these dang hydroids that have almost caused me to exit the hobby. They have taken over some of my corals and I can't seem to get rid of them. I HAVE contained them to mainly one side of my tank, but has taken a lot of work to keep them contained.