Grenade Black Grenade Black is an advanced hybrid organo-mineral flowering additive, naturally formulated to maximise healthy & heavy yielding harvests. It’s a new vision “Super PK” combining the benefits of high quality minerals with amino acids, phytohormones & other biological co-factors. Grenade Black increases plant energy levels (ATP) & optimised sulphur content enhances secondary metabolite production. Grenade Black combines a bulk building & ripening product in one, applied at a concentrated dose rate saving you time & money! Dose Rate: 0.2ml – 0.4ml per litre. (weeks 5, 6 & 7 of the flowering cycle). This additive is compatible with all nutrient regimes, never run multiple PK products at the same time. If you’re following a nutrient chart, please add Grenade first & top up with base nutrients/other additives to reach the desired EC level New advanced PK formula Manufactured & developed in the UK Very economical to use (0.2ml-0.4ml p/L – weeks 5,6 & 7) Grorite featured product 250ml bottle size