Thanks Scott,
I read that discussion. Good information there. I keep my corals at the opposite end of the tank, along with my feather dusters, so hopefully they will be safe. The nem hasn't moved much, must be happy where he is. The GSM's are quite large, and chase everything away from their end of the tank, even ME - as they charge at me through the glass if I get down to see them lol. The blue tang pretty much does his own thing, and the goby stays at the coral end.