Seachem Prime 250ml

Concentrated conditioner for fresh and salt water.
It removes chlorine, chloramine and heavy metals.
It converts ammonia into a non-toxic form and detoxifies nitrite and nitrate salts.
5ml for every 200lt of water.

Dosage
1 ml in 40 litres of water in a newly established aquarium. If ammonia levels are high you can double the dose, also if nitrite levels are very high and need to come down quickly, add 5 times the normal dose. When the water temperature is above 30 degrees Celsius and the chlorine and ammonia levels are low drop half the dose.