Thought I'd be specific since there are so many subtanks out now. Wanting to get something to upgrade my aspire bvc tanks or just compliment them. Nano, mini, plus not really picky. Just want something I can use 1.2 ohm heads or sub ohm heads, don't have a mod at the moment that will fire sub, but I do believe my istick 20 will fire the 1.2. Found some clones on ft but I'm not too sure about that. Thanks.