Supplies

Use an opaque container that blocks light and is sized for the number of plants and the system. Light is the main concern, because it encourages algae. What to Look For Opaque walls, or a covering to keep light out. Room for the nutrient solution to stay at a steady...

Most hydroponic growers use a pH meter or test kit and an EC or TDS meter. These two readings tell you whether the solution is in range for the plants. pH Meter or Test Kit A pH meter is quick and precise once calibrated. A test kit is cheaper but needs more care to...