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Your Grodan® Starter plugs
Use it to start fruiting plants like tomatoes
Kills insects and prevents new infestations
The mist outputs 22-46 microns particle sizes with an average droplet of 20 microns
maintained by a shut-off valve
General Hydroponics® pH Test Indicator 8 oz Grotek Your Grodan® Starter plugsGeneral Hydroponics pH Test Kits make pH testing easy. Simply fill a test tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, which are important factors when the health of a valuable crop is at stake. Use 3 drops per 5ml of solution.
US$ 118.00
US$ 39.97
US$ 16.00
