Nutrients

It depends on the product. Hydroponic plants take up nutrients directly from water, so the fertilizer must dissolve fully and be designed for solution feeding. Many garden fertilizers are not made for this and can leave residue or clog equipment. What to Look For A...

Change the whole solution on a regular schedule, and sooner if it smells, turns cloudy or grows algae. Between changes, top up with fresh water as the plants drink. Why Solution Goes Off Plants take up nutrients unevenly, so the balance in the reservoir shifts over...