Hydrofarm Geolite Pebbles45L - 8-20mmGEOLITE clay pebbles are a strong and versatile growing medium, ideal for hydroponics and horticultural applications. Made from 100% natural Italian clay, these pebbles are industrially produced at high temperatures (2200 degreesF/1200 degreesC) and treated for consistent EC and neutral pH. They offer excellent root ventilation and oxygenation due to their high total porosity (approximately 85% by volume), along with efficient drainage. These pebbles are suitable for various systems, including drip feed, deep water culture, and flood and drain setups. They provide a stable and low-EC environment, making them perfect for hydroponics, hydroculture, and aquaponics.
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