California Marijuana Clones

Growstone GS-1 Hydroponic 1.5 cu ft (35/Plt)

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Growstone? GS-1 Hydroponic Substrate is the perfect growing media for use in hydroponic growing systems as simple as manually irrigated containers or as advanced as automatically drip irrigated containers, Ebb-Flow systems and NFT tables. It replaces strip-mined materials like clay pebbles or stonewool, reducing environmental degradation. Growstones? are designed to allow for rapid moisture absorption and enhanced drainage and oxygenation.