Key Features Official biOrb Complete Care Regular use prevents deficiencies Promotes fish well-being 100ml bottle 4 pumps per 15L of water The Oase biOrb Complete Care is an ideal aquarium water treatment solution designed to help keep fish healthy and clean. The complete care helps to prevent deficiencies in your fish and also helps to promote their overall well-being. Specifications Quantity: 100ml Dosage: Four pumps per 15 litres of water. Apply every seven days