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Type firstDescription
GroStar GS2 Soil pH Pen (Gen II) DE When growing in Coconut Coir When growing in Coconut Coir or using prepared soil or soilless mixes add 1ml per liter (1 teaspoon per gallon) to wet the media and to nutrient solution for the first two weeks The Super Sprouter trays are available without holes to catch excess water and help to keep starts or plants moist and also with holes
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