Hy-Gen PK Top Up Is designed to boost Phosphorus (P), Potassium (K) and Trace elements levels during the flowering and fruiting stage.

After renewing the working solution, during the first few days plants absorb P,K and trace elements at a rapid rate. As levels fall, the growth rate begins to slow down.

Using PK Top Up regularly gives your plants a continued supply of valuable Phosphorus, Potassium and Trace elements when it's needed most.

Use PK Top UP once flowers begin to form. PK Top Up is suitable for all "run to waste" and "re-circulating" systems.