sorry guys I'm new and trying to get a Vapor Shark rDNA 40 mod. I watched few reviews on youtube and have one question, do I have to use nickle wire to use any DNA 40 mods? because I'm using Aerotank Mega, can I use it on rDNA 40W?
Your Aerotank will work fine as is with your existing coils. You don't need to do anything, just screw the tank on, set your regular wattage, press the fire button, and the rDNA40W will automatically switch into non-temp mode and operate normally.
If you want to try the temp control features with your Aerotank, just buy some of these nickel coils from Vaporshark:
KANGERTECH Temperature Sensing Coil (5 pack) - Atomizers - Accessories
Again, the rDNA40W will automatically switch into temp control mode. Just set it for the same wattage as you did your regular coils and enjoy.