BN Trace-Mix is a liquid fertilizer made of a mixture of essential micro-elements for a large number of biological processes. It can be used as a base for a complete nutrient solution. The lack of micro-elements provokes a malfunction of various vegetable processes. The youngest leaves are the first to be affected. Trace-Mix solves this shortage by providing the necessary micro-elements to the plant. DOSAGE: Add 25 ml per 100 litres of solution. It should not be used in combination with basic nutrients that already have a good amount of trace elements.