Slab Professional Basic

Slab Professional Basic is a high-capacity, peat-free substrate solution made for large-scale, high-yield cultivation. It’s designed with a slab format for easy integration with hydro-organic systems — featuring a dense but very breathable coco fiber blend that delivers consistent moisture distribution, excellent drainage, and optimal aeration to the root zone. Ideal for automated irrigation setups, vertical growing, and commercial-scale cannabis production, it’s unbuffered and free from synthetic additives — giving growers full control over nutrient management throughout the plant’s life cycle. With a uniform structure that supports aggressive root expansion and helps maintain stability in long-term grows, it’s especially beneficial for heavy feeders and more demanding strains. For added microbial support, Slab Professional Rhiza includes beneficial biology that helps improve nutrient uptake. If you’re looking for more volume in a loose-fill format, XL Basic gives you the same clean composition in a bulk, free-form.