Balling Method (calcium and alkalinity)

[christyf5]

Inorganic Substances as Additives in the Marine Aquarium (http://www.athiel.com/lib7/drj2.htm) by John W. Linville, DVM


Balling Light Method (http://shop.faunamarin.de/media/content/manual_balling-methode_eng.pdf) Faunamarin