I understand that bottom feeder feeds from the bottom, but are they primarily dripping devices or can they be tanks too? For example, a bottom coil Protank, is that a bottom feeder?
Also, what does RDA stands for, thx
I'll also try to say what others have said...
A bottom feeder is a device that holds a battery, a switch, and a bottle of juice. By mechanical action the juice in the bottle is fed into the bottom of the atomizer. Typically a non-rebuildable atomizer or a cartomizer, but not a tank. Since you have a bottle of juice feeding the coil, a tank is redundant.
Tanks come in many forms, but they are not bottom feeders. They may be bottom coil tanks though.
RDA = Rebuildable Dripping Atomizer They are used by dripping into the atomizer, from above, and vaping. Great for vapers who switch up flavors often. I have a few and usually vape 6 different flavors a day.