General Hydroponics Grow Chart

Basic feedchart generator a simple calculator to generate a feedchart for all general hydroponics nutrients, including flora series, florano...

Hydroponics Ppm Chart

The conductivity of sodium chloride solutions is close to that of hydroponic mineral nutrients, so a "1000-ppm nacl" standard is m...

General Hydroponics Ph Chart

This item: general hydroponics gh1516 indicator fertilizer, 8-ounce, purple ph-test-strips, natural $12. 59 only 2 left in stock order soon....