Aqua Flakes A&B provides the highest quality, fully soluble nutrients designed specifically for recirculating hydroponic applications. This low ppm base is perfect for ebb and flow, DWC, aeroponics, and any type of rockwool. Also use Aqua Flakes in inert peat mixes for best results. Kit includes Aqua Flakes A & B 1L, Multizen 250ml, Bud-XL 250ml, Top Booster 250ml, Drip Clean 250ml, Nitrogen Boost 250ml, Amino Treatment 100ml, Roots Excelurator 100ml, 2 sachets shooting powder.