PRO-MIX BKI

PRO-MIX BKI is a coarse, well-draining substrate with optimal structure and air retention that’s ideal for larger container setups. With a higher proportion of perlite and chunky sphagnum peat moss, it offers strong root aeration and helps prevent compaction over longer cycles. Made without added fertilizers, it gives you full control over what nutrients you give your plants — making it a great choice for creating custom feeding schedules or using automated fertigation systems. Its stable structure is particularly beneficial for supporting larger plants through veg and flower — offering consistent performance from start to finish. If you prefer a base mix with a similar structure that’s enhanced with mycorrhizae for added biological support, the PRO-MIX BKI AGTIV REACH is perfect. Want the same structure without biological additives? The PRO-MIX BK remains a trusted go-to.