Organic gardening in hydroponics – The Hydroponics “Ebb and flow” System
âEbb and flowâ hydroponics system is an example of the common arrangement of the indoor garden. Such system is composed of the upper grow bed, which is a box or tray that holds containers with plants. Those individual containers may be filled with various mediums, the most frequently used ones being rockwool, coconut fiber, lava rock, perlite, vermiculite or styrofoam pellets. The best mediums are those that are porous and can accumulate some water for a long time: lava rock is said to be the best in this respect.
The other part of the hydroponic system is the lower bed â the reservoir with the mix of water and nutrients dissolved in it. Aquarium pump, regularly triggered by a timer, sends water solution up into the tray with plants.
The most important thing is to keep the correct composition of water solution in the reservoir â this is the key factor of the hydroponic garden flourishing. Many beginners find it difficult to maintain the right pH level of the water, necessary amount of nutrients, and their correct ratio.Â


