Higgins is known for their high quality ink! You can’t mix Higgins ink with other inks, but you can dilute them with water. The ink isn’t waterproof but is very lightfast. Therefore, Higgins is a great archival ink. Are you a beginner? Try out the Higgins Eternal! Other inks that are available at Splendith are Black Magic, Sepia ink, Calligraphy ink, Non-Waterproof and the Fountain Pen India ink.