PRO-MOSS TBK is a clean, premium-grade sphagnum peat moss substrate formulated for excellent moisture retention and uniform texture. With its finer particle size compared to other peat moss options, it efficiently retains water and provides a stable, consistent environment for root development. This makes it particularly beneficial for propagation, starting seeds, or blending into custom substrate mixes when you need precise moisture control. It doesn’t contain added nutrients or biological amendments — meaning it gives you flexibility to customize your nutrients and blended substrates based on the specific needs of your grow. If you want a coarser peat moss option with a bit more aeration, check out PRO-MOSS BBK. For growers interested in ready-to-use peat-based substrate with added perlite for balanced drainage, PRO-MIX BKI is a great option.