Some people use even more 5-10 ml for unbuffered NAD+. You can also use 2.5ml BAC and then add sodium bicarbonate to bring the PH up to 5-6 (but not above 6) and the add the remaining bac water (subtracting however many units of SB you added). Be sure to add a vent needle though because it will bubble like crazy.
I just realized this info is already in this thread, start by reading the thread
I hate the amber vials, it makes it harder to see floaters and crystallization. I am perfectly capable of shielding the NAD from sunlight, I don't need an amber vial.
