CANNA Substra Flores Hard Water A and B Nutrients - 5L Hydroponic Plant Food for Indoor & Outdoor Gardening - Ideal for Hydroponics, Soil, and Coco Coir Growing Systems

CANNA substra is the nutrient for systems in which the drainage water is not returned to the nutrient tank but drains away (run-to-waste / open hydroponic systems): the most popular cultivation method in the Netherlands and CANNA substra is the nutrient that is most used for this system. CANNA substra has a balanced quantity of all nutritional elements needed by plants. As the substrates used in run-to-waste systems are mostly inert (they don't add or take nutrient elements from the nutrient solution) all the nutrients have to be in the nutrient solution. An excess of nutritional elements can lead to plant damage but they will also end up in the environment. To prevent this from happening the nutrient should be specifically designed for such a system and preferably for your type of tap water. That's why CANNA developed a hard and soft water version of the substra nutrient line. This ensures the exact amount of nutrients will be delivered to the plants root system and as little as possible nutrients will end up in the drain water; healthy for the consumer and great for the environment.