Interceptor and Panacur

[JSTR]

Tony,

Be careful with panacur as it will kill hydroids but is also supposed to be harmful to all worms and most inverts like snails. Never used it myself, as the one tank I have that I would think of using it in is a sterile tank (knock on wood) no hydroids. All the research I did into panacur, has led me to believe its good but needs careful attention (I'm sure you have looked into this already). If you run out of luck with the local vets, take a gander at seahorse.org, there are a few online places you can order it from.

Just out of curiousity, what are you keeping, that has you afraid the hydroids will harm them. Most animals are not affected by them.

HTH