Hi, Ive been vaping for a little while now only the store bought stuff like the Mistics from Wally world and the Blu. I just bought a firefly tho a little while ago and the atty has quit. I am wondering what atty I should buy for it. I didnt know any of this stuff exsisted until I hooked up with an old friend and he showed me all kinds of things but now I am trying to learn. Thanks for any help