is this the best way to get rid of them? what is the gluing idea about? you just hit them with coral glue? we are having an issue in our tank right now.I dont think its a lost cause though, bumblebee snails and maybe even some wrasses can help with the issue, as well as muriatic acid to the worst of the rocks. Also start crushing the tubes and or glueing them. Its tough but as long as corals arent being bothered it isnt done just yet.