In this guide we’ll look at the best pond aerators for the UK market.
We’ve compared build quality, reliability, performance and cost
to give you our top recommendations.

What Is The Best Pond Aerator?

  • Features
  • Powerful 15w motor
  • Quite
  • Works outside.
  • Cost
Rating
9.8/10
  • Features
  • 380LP/H flow rate
  • Weatherproof
  • Good accessories
  • Cost
Rating
9.5/10
  • Features
  • 200LP/H
  • Low watt motor
  • Replaceable diagrams
  • Cost
Rating
9.3/10
  • Features
  • Weatherproof
  • Full kit
  • Compact unit
  • Cost
Rating
9.0/10

More Detailed Pond Aerator Reviews

Oase AquaOxy 1000 Pond Aerator

The Oase AquaOxy 1000 Pond Aerator is the best pond aerator thanks to its powerful motor, quiet operation noise and it is a fully outdoor weatherproof air pump.

This pond aerator has a powerful 15w motor. This allows it to aerate ponds that are large, providing good amounts of oxygen to the whole pond. The aerator supplies up to 1000 litres per hour of aeration to your pond. The valves are adjustable so you can tailor the power depending on the size of the pond and time of year. The motor, while being powerful, remains quiet. This is a great bonus as when you are near your pond the noise will not disturb you.

The AquaOxy 1000 comes with 2 air stones, 2 x 5m lengths of air line and a replacement set of diaphragms so has everything required to get started straight away.

Overall, this is a great product that provides the best pond water treatment thanks to its powerful yet quiet motor and its hardwearing weatherproof design.

Hozelock 320 LPH Pond Air Pump

The Hozelock 320 LPH Pond Air Pump is another good option because it has a steady 320LP/H flow rate, is fully weatherproof and comes with good accessories.

This pond aerator can provide a good steady water flow of 380LP/H allowing you to aerate your pond in an efficient manner and create a good supply of oxygen for your fish and plant life. This model is also completely weatherproofed so it can handle frost or rain well. This also allows it to cope with splashes from the pond if it is left close by.

On top of being powerful and weatherproof, it comes with good included accessories. These include 2 non-return valves, 2 air stones, and a 10m airline.
This is a good option for you if you want a pond aerator with a good flow rate that is waterproof and comes with all the required accessories.

Pontec Pond Aerator Set 200 57515 Pond

The Pontec Pond Aerator Set 200 57515 PondPond is another good choice because it has a 200LP/H flow rate supplied by an efficient 4 watt motor and ships with replacement diaphragms.

The 200 LP/H motor allows this pond aerator to create a good flow of water supplying plenty of oxygen to your pond. This 200LP/H flow rate comes from a surprisingly low powered motor at just 4 watts. This saves you from using too much electricity keeping the cost of your pond aeration down.

This product also comes with replacement diaphragms which is handy as these are the parts that suffer the most wear and tear.

Overall, this is a great product if you want good flow rate coming from a low wattage motor with replaceable diagrams to improve its longevity.

Blagdon Pond Oxygenator Kit Small (2871) for Ponds Up To 1,000 Litre

The Blagdon Pond Oxygenator Kit for Ponds Up To 1,000 Litre is another good choice because it’s well weatherproofed, it’s a complete kit and it has a compact size.

This is a good option if you are going to be leaving it outside thanks to its good weatherproofing. It’s fully waterproof and offers good frost resistance. This enables you to leave it tucked away all year round without worry.

This product comes as a complete kit including a nice long tubing to reach the bottom of your pond and air stones to allow you to get your aeration going as soon as your purchase arrives. It’s also nice and compact at 10cm x 5cm x 5 cm allowing you to tuck it away in the corner of your garden or under some plants.

Overall, this is a great option for small ponds if you require good weatherproofing and all the accessories you need in a small compact unit.

Pond Aerator Buyer’s guide

Importance of pond aeration

Pond aeration is very important for both your pond’s health and looks. It is particularly important if you keep fish in your pond.

The first important reason to aerate your pond is that oxygen is required by the beneficial bacteria that will decompose the plant matter that falls to the bottom of the pond. Without it, you will end up with lots of dirt and debris such as decaying plant matter and fish waste forming at the bottom of your pond and rotting creating a stagnant and unhealthy pond.

The second important benefit of pond aeration is to stop an effect known as layering in your pond. This is when the pond water splits into different layers depending on the temperature and oxygen level. If a pond layers, only the top portion of the pond will have adequate oxygen for your fish. This can mean there is not enough space for your fish in your pond as they can only use a small portion of it.

The other danger of layering is when the top becomes oxygen-rich it becomes heavier than the water below it. This can cause it to sink and mix all the pond water. This will then rapidly drop the entire temperature of the pond but also make oxygen to scarce for fish. This puts all the fish in your pond at very high risk as they will be too cold and not have enough oxygen.

Using an aerator for your pond is very important for the health of your pond inhabitants from the beneficial bacteria to the plant life and, of course, the fish.

Flow rate

Flow rate is the measurement of how many litres the pump can move. This is normally referred to as LP/H standing for litres per hour. Larger ponds will require more water to be moved to properly aerate the pond effectively, so the larger the pond the higher the LP/H you will need.

Energy efficiency

Having an energy-efficient pond aerator will save you money on your electricity bill. It can be hard to determine the energy efficiency. Some products will use the standard efficiency rating similar to your typical electrics like washing machines, this gives them a letter rating from A+ to D.

Alternatively, you can roughly work out how efficient it is by comparing the watts used to the LP/h. if you have a pond aerator that uses low watts say 5 watts and still creates an LP/H of 400 this is going to be a good energy-efficient option.

Reliability

Having a good reliable pond aerator is important as it ensures a healthy pond. Obviously, it is also a hassle if your aerator breaks down. All of the products on our list provide a reliable option and include replaceable parts to improve the longevity of your aerator.

Weatherproofing

Weatherproofing allows you to leave the pond aerator outside without having to worry about frost and rain. If you have a non-weatherproof option, you will need to store it in an outside building such as a shed and then run the plumping outside to the pond. If you don’t have an outside room near your pond or don’t want to run plumbing through it then a weatherproofed option is a must. Otherwise, it will not withstand rain frost or even splashes from the pond.

Conclusion

Pond aerators are a very important tool to keep your pond happy and healthy. The appearance and health or your pond and its inhabitants will be improved by good aeration. I would recommend the Oase AquaOxy 1000 Pond Aerator as the best pond aerator thanks to its powerful, quiet motor and excellent weatherproofing.