So, how do you know when your mini tank is dead? I bought two mini tanks for my G6 a little bit less than a month ago and tore one up by being nosy. I really liked them so I ordered some more but am waiting for those to get here. The one that I have left has been the only thing I've been vaping on for about the past week. Now it seems really airy on both my batteries and my juice doesn't seem to be heating up like it did before. There's practically no vapor production and the taste is almost gone. Is it time to trash this mini tank? Does it sound like it's the mini tank or something wrong with my batts? Thanks!