Koi-Zone

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Airstones and Air Diffusers

Pond Aeration

Good Pond Aeration is an essential requirement in all good Koi ponds. All Ponds need a plentiful supply of oxygen. Both your fish and the biological filter require large amounts of oxygen to thrive.

A good quality air pump such can power several air stones even at five or six feet depth. It is a good idea to place a few air stones directly in the filter system to provide oxygen for the filter bacteria as well as in the pond itself.

Oxygen will also be added by water splashing into the pond on its' return from the filter and waterfalls are especially effective in this respect. However, bear in mind if building a large waterfall the possible nuisance from the noise at night and also put in a system to bypass it in the winter. A large waterfall will have a big cooling effect on the water.

There is less need to worry about the oxygen level in the winter as cold water holds far more oxygen than warm water and your fish will be less active and require less oxygen.

2-inch Blue Standard Airstones

2-inch Blue Standard Airstones

Blue Ball airstone, approx' 2 inches diameter for ponds These Standard Blue Airstones are small enough to fit in a filter system as well as being used in a pond system. These Blue Air Balls are ideal for delivering large amounts of oxygen into the pond and filter systems.. Sold in packs of 5 or 10 Kept on Premises
PVC Airline With 2 x 2-in. Blue Standard Airstones

PVC Airline With 2 x 2-in. Blue Standard Airstones

30m Standard Airline complete with 2 x Blue Standard airstones. These balls are small enough to fit in a filter system as well as being used in a pond system. These Blue Standard airstones are ideal for delivering large amounts of oxygen into the pond. Kept on Premises
Spin Drifter Aerator Free Standing

Spin Drifter Aerator Free Standing

A free standing pond aerator, which creates masses of air. Stainless steel base weighted base. 250mm EPDM diaphragm. Air inlet hosetail 3/8th Air Valve, 1/2" Air Valve Ideal for free standing in ponds, quarantine tanks & growing on tanks.
Air Diffusers

Air Diffusers

These Super high quality rubber weighted air diffuser, are excellent for aeration of ponds. Supplies pond with a stream of small bubble for that extra needed oxygen. The Diffusers are manufactured from synthetic rubber which has excellent ozone resistance, solvent resistance, heat resistance, and...(click on product image for more details)
Korean Ceramic Airstones

Korean Ceramic Airstones

Korean Ceramic Airstones are ideal for small ponds, quarantine systems and aquariums. These Ceramic Airstones are very durable and extremely long lasting. Available in the following sizes: 15mm x 70mm - 6mm 20mm x 120mm - 6mm 30mm x 130mm - 6mm 40mm x 200mm - 10mm 50mm Air Ball - 6mm Kept In Stock
Oase Oxytex 400 CWS Air Stone

Oase Oxytex 400 CWS Air Stone

OxyTex CWS, from Oase is a world innovation which combines 2 important filter system functions: Aeration and filter surface. The Oase Oxytex 400 supplies the pond with vital oxygen and keeps a lot of space ready, through its unique bio-technical fibre structure, for important micro organisms that...(click on product image for more details)
Ceramic Cylinder Air Stone 120mm x 20mm

Ceramic Cylinder Air Stone 120mm x 20mm

These Ceramic Cylinder Air Stones are ideal for ponds and large aquariums lots of pore providing lots of small bubbles and oxygen to water also long life. 120mm x 20mm with 4mm connector.
Dome Shape High Output Air Stone

Dome Shape High Output Air Stone

Domed Shaped High Output Grey Pond Airstone made from carborundum and ceramic material. Output will depend on Airpump Capacity. High Output Dome Airstone Long Lasting Fine Bubbles One Of the Biggest on the Marketplace Available In Two Sizes: 6 inch - 150mm & 10 inch - 260mm - Sizes...(click on product image for more details)
Fragmented Air Ring

Fragmented Air Ring

Thes Air Ring is an ideal way of adding oxygen into a pond, treatment tank or large aquarium. The Fragmented air ring simply connects to your pond airpump and ensures a ring of oxygen is added into the water wherever positioned. 12" diameter fragmented air rings offer a finer air bubble than a...(click on product image for more details)