Tazl both tanks i run are the full size nautilus and the nautilus mini...both running 1.8ohm coils and i run them both between 10-14 watts on my dna 30 clone. But i also only currently run 50/50 blends, but like everyone else mentioned different ratio juices can only be ran at certain wattages for them to taste right. So its not the tank/coil per say in this case it would be the juice. And i realize you have been told this, i am just agreeing with everyone and throwing in my opinion. Vape Happy!