15 ml per 100 l/ 26 US-gal. aquarium volume increases the boron content by 1 mg/l (ppm).
Maximum dosage: 30 ml per 100 l/ 26 US-gal. aquarium volume (adding 2 mg/l (ppm)) daily.
A dosage of 15 ml per 100 l/ 26 US-gal. aquarium volume increases the potassium content by 1.8 mg/l (ppm) at the same time.
Store in a cool and dark place.