Tetra SafeStart contains beneficial microorganisms which rapidly establish a safe biological enviroment and thus enables the fast introduction of fish into a newly set up aquarium. For all freshwater aquariums. 100ml for 120 litres of aquarium water.Application: 1. Condition tap water with Tetra AquaSafe. 2. Shake well and add 5ml per 6 liters of aquarium water. (recommended minimum water temperature: 20C. 3. Introduce a moderate number of fish - consult your retailer for details). 4. Feed restricted amounts during the first two weeks.Store at room temperature. Do not expose to temperatures above 30C or below 2C.