Mantis vs. (insert critter) questions

[Shrimpi]

So i just "converted" my tank to a mantis tank.

I had spotted a peacock (3") at a reputable LFS about a month ago and fell in love, I went back today and my crush was still there.

here lies the questions.

I recently purchased a baby mandarin- I will be attempting to catch him although he is a fast little bugger suprisingly.... Im worried that since reading mandarins have a poisonous skin that if the mantis does take a 'bite' what will happen? will he die? or just get grossed out and leave it be?

other question... which no one at the LFS could answer. I have a beautiful tube anemone in the tank. happens to be my fiance's favorite 'critter' (so i try to keep him around more than other things) do you think the mantis may attack it? its mostly buried and comes out of a rock crevice where it retreats quickly if disturbed.

Im leaving the CUC in there I figure its a 'meal plan'.

Any help with my questions on the mandarin and tube anemone would be great thanks.

Ill try to get an official first pic. And I recently got a canon rebel so there'll be LOTS haha. Hes kinda lurking, but was very active in the LFS. Hes currently in my AP24. Dont worry he will be upgraded in the future, not an issue

Jessica.