PRO-MIX CX is a general purpose substrate perfect for growers looking for a simple, consistent, and high-performing ready-to-use mix. Formulated with sphagnum peat moss and perlite, it has a fine, uniform texture that retains moisture and offers moderate aeration for healthy root development. It’s ideal for both automated systems and hand-watering, especially in smaller containers or setups that require even moisture distribution. Free of added fertilizers, it gives you full control over your nutrient program — making it a great base for custom feeding schedules, organic inputs, or hydro-organic blends. Easy to use with a clean profile, it’s a go-to for both new and experienced growers. If you want a coarser mix with greater air porosity for larger plants or longer cycles, PRO-MIX BK has an enhanced structure. For a similar mix with a slightly finer balance of drainage and retention, PRO-MIX BX is another option worth looking into.