I've been using vivi novas with metal sleeves for about 3 months now. I used to have a carto tank but I ruined it with cinnamon juice. I remember loving my carto tank. I'm looking for a tank that I can use cinammon juice in if I wanted to and one that can compete with the vivi nova performance wise. Not looking to drop a ton of money on a tank either. Looking for about 20 bucks tops. Thanks