CANNA Substra Flores A (3-0-3) & B (1-3-5) Hard Water | Bloom Nutrient Kit – 20 Liter

CANNA Substra Flores A&B Hard Water: Two-Part Bloom Nutrient for Inert Media CANNA Substra Flores A&B Hard Water delivers a complete two-part flowering formula designed for inert media like rockwool and run-to-waste hydroponic systems. The balanced profile reduces nitrogen while raising potassium and phosphorus to match bloom demands, and chelated trace elements ensure consistent, canopy-wide uptake. Substra Flores A (3-0-3) and B (1-3-5) for Hard Water Precision Feeding The hard water formulation counteracts elevated mineral content in source water to maintain stable pH and optimal nutrient availability through the flowering cycle. Part A (3-0-3) and Part B (1-3-5) together cover all macro and micronutrients for the bloom phase, supporting strong metabolism, prolific flower set, and efficient performance in rockwool and run-to-waste setups. Key Features Hard Water Formula: buffered for high-mineral source water to maintain pH stability and consistent nutrient delivery through flowering Two-Part Bloom Nutrition: Part A (3-0-3) and Part B (1-3-5) together deliver a complete bloom-phase macro and micronutrient profile Chelated Trace Elements: readily bioavailable micronutrients maximize uptake uniformity across the full canopy Inert Media Optimization: developed specifically for rockwool and run-to-waste hydroponics with precise mineral ratios for the bloom phase Bloom-Phase NPK Shift: reduces nitrogen while raising potassium and phosphorus to align with the plant's flowering demands Technical Specifications Specification Value Brand CANNA Product Substra Flores A & B, hard water version NPK Part A 3-0-3, Part B 1-3-5 Size 20 L set, one 20 L can each of A and B (SKU CASFHKIT3) Growth stage Flowering Dosage 0.5 fl oz/gal (40 mL per 10 L) maximum, A and B in equal amounts Recommended EC 0.8 - 1.8 mS/cm (A + B, source water at 0.0 EC) Recommended pH 5.2 - 6.2 Water gift 4 - 6 L per m² per day Water type Hard tap water Growing media Inert substrates such as rockwool, run-to-waste Mixing Never mix A and B concentrates directly