Our own hydroponic clay has been designed for consistency in horticultural applications. SG Hydroponic Clay is sourced and made in Germany with clean and modern techniques. We ensure that every batch is certified organic, germ-free and chemically/biologically neutral. Hydroponic clay can be used as a standalone hydroponic substrate or mixed through coco/soil.
-  x Stealth Garden Hydroponic Clay - 50L
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