There are occasions that temperature of nutrient solution is too cold. A grower can incorporate a submersible heater, like ones used for aquariums. Before setting up a hydroponic system, horticulturists should give serious consideration to how they are going to control and maintain the temperature of the nutrient reservoir.Aerating the Nutrient Solution Temperature of nutrient solution determines amount of dissolved oxygen solution can hold. However, once that dissolved oxygen is used by the plant’s roots, it needs to be replaced. The most common way to achieve this is with an air pump ...