Koi Pond Aeration

The benefits of Air in your pond:

There are a number of very essential pieces of equipment to consider when planning a pond.

None more so than a good reliable quality air pump.

It is important to note that all of these elements must work in harmony with one another.

So why aerate a Koi pond?

A Koi pond is more than a hole in the ground with a liner and some water. In order to have a healthy, dynamic pond environment you also need a biological filter, a source of aeration, a circulation pump and adequate space, or volume. It is important to note that all of these elements must work in harmony with one another.

The filtration system purifies the water of wastes, bacteria and other toxins. An aerator supplies air to the water so the fish will have oxygen and the water does not stagnate. The pump moves the water through the filter and aerator. This cycle is the lifeblood of a pond. 

Water ponds, fish and oxygen ... the big secret to Koi fish keeping.  We survive on this earth because we can breathe oxygen. Koi need oxygen and the beneficial bacteria that keep the water healthy need oxygen.

Where is the best place in any pond system to add air or oxygen?

Directly into the biofilter system as close a possible to where the bacteria are sitting. This is why vortex filters and Japanese matting work so fantastically well together in any serious water ponds system .... but only by pumping plentiful volumes of air around the Japanese matting matrix.

How much air should you add to you Koi Pond?
Add as much air to your pond as you can using air pumps and air stones to distribute the air (highly recommended for ponds that are heavily stocked). You can add the air directly to the pond, the filter, the waterfall and anywhere else you can think of.

How much air should you add to you Koi Pond?

Add as much air to your pond as you can using air pumps and air stones to distribute the air (highly recommended for ponds that are heavily stocked). You can add the air directly to the pond, the filter, the waterfall and anywhere else you can think of.

The amount of oxygen water can hold is dependent upon atmospheric pressure, salinity and temperature. Water can hold less oxygen as altitude increases. Salinity is not important for most freshwater fish producers. The most important factor is water temperature. As temperature increases, water can hold less oxygen. Most low oxygen problems occur from June through September. The reasons for this are:

  • Water can hold less oxygen as it becomes warmer. 
  • Respiration rates of both plants and animals increase with the warmer water, so more oxygen is used.
  • Summer's still, hazy or cloudy days may reduce the amount of oxygen produced. 
    Large amounts of feed given to fish at this time of year result in large quantities of fish waste which create a higher demand for oxygen.

The last note for safety:

NEVER - NEVER install an air pump BELOW water level! (Unless you install a check valve in the line!) If at any time your power supply to your air pump is interrupted, water will back siphon down the delivery tube and flood the pump workings, rendering the pump inoperative, to say nothing of the danger of water and electricity coming in contact.

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