An excellent easy to use nutrient in Grow & Bloom formulations with a Boost component. Ionic gets our recommendation for yield and ease of use. For best results buy Ionic Grow, Bloom & Boost. Use Ionic Grow during the growth phase and then during the flowering phase switch to Ionic Bloom adding in Ionic Boost as well halfway through flowering. 1 litre of Ionic makes 150 litres of full strength nutrient. Hard and soft water formulations available. Ionic Boost is a universal formulation for hard and soft water