This is specialized for Medaka. They do best in acidic water with a PH of 6.2-7.0. it provides all the needed micronutrients trace elements and minerals these active fish need for good health, a strong immune system, resistance for disease and to stimulate spawning. It also promotes the growth of essential bacteria, which boosts the biological filtration system and increase the Oxygen carry capacity of the water. The result is stable clear water conditions and a reduction in the frequent need of water changes.