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Water Heaters

Water Temperature and Oxygen:  Water can hold 5 parts per million of oxygen at 25 degrees.  At 20 degrees water can hold 8 parts per million of oxygen.  The colder the water gets the more oxygen it can retain.  The warmer water gets the less oxygen it can retain.  However, if water is too cold the plant will stop taking up food.

Ideally a plant wants a minimum of 5 parts per million of oxygen.  An ideal water temperature is between 22-23 degrees C.  Keeping the water/nutrient within this temperature range ensures that there is enough oxygen available to the plant while not compromising uptake.

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