maybe...but bugs can sometimes surprise you with their resiliance.

I have the cypress bugs in my setup...if they become noticable I just put down some PAM and that seems to kill them. I have assumed they are not harmful to my animals...hopefully that is true

mostly they are so few in numbers that I have to really search for them. When they are that few I don't do anything. Hopefully if I am wrong someone will post up and say so!