Packed with micros, PH buffers, wetting agents and mycos, Batch:64 Pioneer blend is ready for anything! Pioneer performs equally well with most hydroponic techniques such as hand watering, drain to waste, recirculating, and slow drip systems.Blended with no micro-nutrients or NPK, so you can start your feeding regimen immediately. With a gracious dose of micro-nutrients in Pioneer means you won't need to add cal/mag or micros to your feed. For best results, test and balance liquid feeds and water to between 5.8 to 6.8 ph. Ingredients coconut coir, perlite, pumice, rice hulls, expanded shale, humus, biochar, metamorphosed evaporite, oyster shell, azomite, yucca extract, and mycorrhizae.