AC Infinity Hydroponic Meter Pro Kit, ALL-IN-ONE PH PEN, Interchangeable Probe dwc-systems The Grow formula would be

The Grow formula would be best used for plants with an unusually long vegetative period (>6 weeks) and/or for donor/mother plants with ongoing vegetative growth

For maximum effect you can use a double dose

supplements

watering and fertilising as needed

In winter

AC Infinity Hydroponic Meter Pro Kit, ALL-IN-ONE PH PEN, Interchangeable Probe dwc-systems The Grow formula would beA digital hydroponic testing meter for measuring waters acidity, alkalinity, electrical conductivity (EC), total dissolved solids (TDS), temperature, and salinity (salt content) to help optimize its quality for gardening and water treatment applications. The highly responsive sensor probe utilizes a lithium glass membrane to instantly determine pH readings with highly precise 0. 01 accuracy. This all in one pH pen tester for water features an IP 67