hydriods

[ScubaGirl]

Ok, dinos seem to be non-existent (once again, YAY!) so ready to attack the hydroids. Anyone with experience doing the epoxy? I have small patches of these on almost every rock in the tank. It will be an extensive job.
I'm full of questions:

• Should I do one rock at a time or start replacing the live rock in my tank?
• Doing one rock at a time will be a lengthy process and I will have to dismantle my whole rock work. Have any of you done this successfully? Any issues arise?
• Should I do it over a couple of days for less trama to the live stock?
• What brand of epoxy did you use?
• How long to leave it outside the tank before returning it to the water?

Here we go for a ride on the crazy train, LOL.