Vetafarm Calcivet Liquid Calcium 1LCalcivet Liquid Calcium & Vitamin Supplement for use with a wide range of birds. Active constituents: Calcium 33g L and Vitamin D3. Calcivet has been formulated to supplement diets of caged birds where levels may be low in Calcium and Vitamin D3. Size: 1L Directions for use: Water Add 5ml (1 capful) per 250ml (1 cup) of drinking water. Supply as a sole source of drinking water, replace daily. Seed Pour 5ml (1 capful) over 1 cup soaked seed Direct Dose