All expanded clay is not the same. Hydro Crunch expanded clay pebbles are made with only the highest quality clay, producing a media that is uniform, stable & low in inherent E.C, meaning you get the best outcomes from your plants. Our Clays are the next generation in the media you have come to know & love. The ceramic shell & inner pore structure retains moisture & releases it back to your plant's roots as needed. Grow rocks will not compact, ensuring excellent aeration for the life of your plant. It is reusable & lasts indefinitely, making it a great value. Hydro Crunch horticultural clay pebbles are made from 100% natural clay. They are clean, pH stable & offer great aeration & drainage in hydroponics, especially in flood & drain, deep water culture & drip feed systems. Due to their unique structure & ability to cover a large surface area, they offer the ideal environment to foster beneficial bacterial growth around the root zone, leading to naturally healthier plants. - made from 100% natural clay, extremely stable in both pH & ec - pre-washed to aid in stability - drains freely & does not hold excess water, provides good oxygen levels around the root; suitable for flood & drain systems, multi-pot & drip feed systems - strong structural integrity means that they are less likely to break & compact, which helps to prevent dripper systems from getting blocked - pure mineral without fibers or solvents - offers excellent evaporation protection as a top layer - can be used with all current hydroponic systems - also ideal to be used in aquaponics systems - size: 50 liter bag, 8 mm

• Superior water-storing properties
• Pure mineral without fibers or solvents
• Coarse pored and aerate expanded clay
• Offers excellent evaporation protection as a top layer
• Can be used with all Current hydroponic systems