I have the exact same pistol that was in some LR
. I agree with cj10488 in the fact that they can be noisey however mine is in my bedroom and never wakes me up....maybe I'm just a deep sleeper?
I sheds very often as well, however Ive only seen him once since he's been in my tank. I woulsn't worry about putting him in your tank unless you dont' want the noise, mine has never harmed anything in my tank.