Dissolved Oxygen
Wednesday, July 18, 2007
Oxygen is vital to all living organisms.
Low oxygen concentration can cause koi to be susceptible to disease and even die suddenly. Usually the larger koi die first when the oxygen level is too low. Oxygen concentration decreases when, (1) temperature increases, (2) over stocking of koi in your pond, (3) decaying matters in the pond, (4) poor or no circulation of pond water.
To find the level of dissolved oxygen or oxygen concentration, use a test kit or Dissolved Oxygen Meter.
Moving water helps mix air into the water. A stream, waterfall and jets can perform this. By moving the water surface of a pond with pond jets, the atmosphere and water contacting each other repeatedly will increase the oxygen content of the water. Air pump and air stone is a good means of increasing oxygen concentration.
By increasing the oxygen level in the pond water, a healthier pond is achieved. One important aspect that higher level of oxygen in a pond helps is in better promotion of good biological bacteria known as Aerobic bacteria. Aerobic bacteria are the good bacteria in our pond that need and like oxygen. They grow and eat dead decaying plants and algae 20 to 30 times faster than Anaerobic bacteria. Anaerobic bacteria live and grow in the absence of oxygen. Maintaining a constant supply of oxygen greatly improves the ability for the Aerobic bacteria to thrive and keep your pond cleaner, the water clearer and fish healthier.
Ponds that are designed with bottom drains permit better oxygen disbursement towards the bottom as water usually enters the pond's top surface and is drawn out from the bottom drain to the filter box. This method re-circulates the pond's total water volume better. More oxygen content close to the bottom promotes the good bacteria which consumes waste that settles on the bottom.
There are many benefits to having adequate oxygen concentration. So, when it comes to oxygen in your pond, more is better!
PH Ong / KK House
10:34 PM |
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