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It is great for low K soil
General Hydroponics pH Test Kits make pH testing easy
ALSO NON-PLANT FOOD INGREDIENT: 1% Humic acid (derived from Lignite)
Active Eye Color-Correcting LED Grow Room Lenses exceed US FDA Reg
Say goodbye to spider mites
Apera GroStar GS4-E Replacement pH/EC Combo Electrode Root Innoculant It is great for lowAI58040 GroStar GS4 E replacement pH EC combo electrode Measures pH, conductivity (EC and PPM) and temperature Combo probe built with lithium glass membrane and titanium alloy to ensure high accuracy and durability Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance double junction structure uses blue gel electrolyte without the air bubble 1 year warranty
US$ 165.00
US$ 175.00
US$ 760.00