Thanks guys. I have a question about my strawberry tunicate. The FS guy had been smoking before he got my corals out of the tank. I figured because the guy was the one who actually owned the store and seems very knowledgeable would know that nicotine is bad for corals and would use his other hand that he didn't smoke with. But there is a brownish green spot growing on it. You can see it in the picture and it is starting to be more predominate. Almost like a bruise. It would be where his figure grabbed a hold of it. It also seems to have drooped some and is having whitish slime on it. I blow most of the slime off with an eyedropper and tomorrow I am going to run tests and due a water change. Any advice?