Justin,
I once had a mating pair, years ago. They were vicious and attcked my hand and arm everytime I was near them. They actually bit the skin.
It would be a toos up, which were the worse. Them or my former pair of cinnamons, that like to grab a hold of the skin between your fingers.

Speaking of which, I,m going to help the guy clean some crap in the tank today, where they now reside.
