Bloombastic biological/mineral formula premium bloom booster.
Use for the last 4 to 6 weeks. Can be used as a replacement at the same rates as PK 13/14 in any schedule that uses a PK 13/14 for the perfect boost.
NPK 0:20:21.
Typical dose: 1 litre makes 1000 to 2000 litres of nutrient solution.