Diamine Aurora Borealis in a 30 mL plastic bottle. Diamine produced Aurora Borealis for the Reddit community /r/fountainpens - a great group of fountain pen enthusiasts (of which we are active as /u/LemurInk).
"Aurora Borealis?! At this time of year, at this time of day, in this part of the country, localized entirely within your kitchen?!" - Super Nintendo Chalmers, 1996.
Produced in the UK since 1864, Diamine Ink offers a wide array of color choices and delivery systems, including various bottle sizes as well as cartridges for use in fountain pens.