How To Check Soil pH Level - Help Your Plants To Thrive!
Test the p.H of your Plants
pH & TDS Meters / DIY Hydroponics
How to adjust the perfect EC for plant growth? | (EN)
How to measure PH and EC - 1+5 method
How to Test & Adjust Soil PH for Growing Cannabis Plants ( Seeds, Soil & Sun: Season 2 Ep 2)