Earthworm Calcium Carbonate Supplement & Soil Amendment Oyster Shell (CaCO3) is 100% natural soil conditioner that consists of 97% calcium carbonate (CaCo3) and many micronutrients, improving fertilizer uptake, promotes healthy cellular structure and enhances soil tilth. Oyster Shell is also helpful in creating more active habitats for soil microbes in compost piles and worm bins. Oyster Shell provides a long-lasting, steady release of nutrients to help regulate pH levels helping to avoid acidic environments that can lead to protein poisoning. Ultra fine powder sieved with #80 screen to insure consistent particle size.

• Item Weight ‏ : ‎ 1 Pounds
• Date First Available ‏ : ‎ June 7, 2023
• Manufacturer ‏ : ‎ Worm Ferm