Laguna Koi Ponds

(949) 494-5107

Pond Aeration / Air Pumps - Laguna Koi Ponds

Laguna Koi Ponds
20452 Laguna Canyon Rd.
Laguna Beach, CA. 92651
Hours of Operation:
Mon-Fri 9-5 Sat 9-5 Sun 10-5
949-494-5107
Pond Calculator App for Android

Pond Aeration / Air Pumps -

Koi Pond Aeration
"Aeration" is the term that we use to mean adding air to the water. Since air contains 22% oxygen, aeration adds oxygen to the water.

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.

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 Matala matting work so fantastically well together in any serious water ponds system .... but only by pumping plentiful volumes of air around the Matala matting matrix.

How much air should you add to your Koi Pond?
Add as much air as you can using air pumps and air diffusers 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.

Pond Volume in Gallons 1000 2000 3000 4000 5000 6000 7000 8000 9000 10,000
Liters of air/min required to maintain
Dissolved Oxygen at Koi Safe Levels
40 80 120 160 200 240 280 320 360 400

These numbers are intended as a guideline. Your application may vary according to stocking levels. (In general terms, 40lpm per 1000 gallons is a good rule of thumb.)

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.


6 in. Cylinder

6 in. CylinderThese high quality long life air stones are made from a refined ceramic compound. They produce very fine aeration and can be used in conjunction with any good air pump. All of the cylinder ceramic air stones have rubbe... (continued)
6 in. Cylinder

HAKKO HK 80 LH

HAKKO HK 80 LHThe Hakko HK-80 LH Linear air pump represents a top of the line Liner Air Compressor with 3 year warranty. The Hakko Air Pump 80 L will deliver a maximum of 100 liters per minute. Only 85 watts used !! Suitable for p... (continued)
HAKKO HK 80 LH

Membrane Air Disc 9 ...

Membrane Air Disc 9 in.Our Matala Air Discs are designed for the wastewater treatment industry to very high standards. The air por size in the rubber membrane is designed to give a medium size bubble which will not put any significant back pre... (continued)
Membrane Air Disc 9 ...

HAKKO HK100L

HAKKO HK100LThe Hakko HK-100 L Linear air pump represents a top of the line Liner Air Compressor with 3 year warranty. The Hakko Air Pump 100 L will deliver a miximum of 120 Liters Per Minute . Only 116 watts used !! It is a sma... (continued)
HAKKO HK100L

24 in. Air Tube Diff...

24 in. Air Tube Diffuser w/ plugOur Air Tube Diffusers are designed to be a drop in system. The rubber membrane is wrapped around a hollow PVC tube. It is neutrally bouyant so you may also add small stones to the inner tube to increase weight so it sta... (continued)
24 in. Air Tube Diff...