Pond Heating

Pond Heating

Heating your pond

To heat a Koi pond or not to heat a Koi pond? That’s the million dollar question most Koi hobbyists will face at some point.

Koi as many believe are not actually cold water fish but rather temperate water fish. In addition Nishikigoi are very different to naturally occurring carp because they are extremely inter-bread to enhance individual varieties of Koi and their beautiful colours and patterns. This unfortunately has the side effect of making Nishikigoi more fickle to look after and less hardy.

Koi can survive cold water but there is a difference between surviving and thriving.

The weather in the UK is inclement at best and generally winters in the UK and Europe are long and harsh. The summer months throughout large areas of the UK are not particularly warm with wild temperature swings from day to day.

The main reason to use a heater on a Koi pond isn’t necessarily to heat the pond water to extremes high temperatures but to remove the temperature swings. Koi thrive in a stable environment with minimal temperature swings.

Elecro Heater & Elecro Cygnet titanium

Maintaining the pond water above 12 degrees all year ensures that the nitrifying bacteria, so called good bacteria in your filter don’t suffer die off when the water temperature drops below that magical figure. Keeping the pond filter in tip top condition all year round will greatly reduce outbreaks of bad bacteria causing issues with the Koi in the pond such as ulcers and raised scales.

The immunes system of the Koi in the pond is given a helping hand when a stable temperature is provided because stress to the fish is drastically reduced.

Water temperature and the metabolic rate of Koi are directly linked. In general the question of heating a Koi pond comes up with the topic of how do I grow my Koi into big Koi.

Mini Ray infrared thermometer & Thermotec air source heat pump

Now the most informant thing we believe when owning Koi isn’t necessarily the ability to grow big Koi but it is much greater importance to us that Koi are kept well and health but we do understand that most Koi hobbyists dream of growing a small Tosai into a jumbo koi over 70cm which is something to be admired and appreciated.

We will cover off the complexities of growing jumbo Koi in one of our blogs or V’logs but the basics are based around water temperature. Koi are poikilothermic which means that their body temperature is the same as the water surrounding them. Koi will grow in water above 15 degrees but growth is massively accelerated once the water temperature exceeds 20 degrees.

So in short and to recap if you want you pond filtration system maintaining a high level of nitrifying bacteria, your Koi maintaining a good immune system with the benefit of greater growth rates heating you Koi pond or even stabilising water temperature fluctuations caused by the good old UK weather through the use of a pond heater will transform the hobby of Koi keeping for you.

Digital Thermometer

We recommend as with all electric installations that they are carried out by a professional electrician.

At Utopia Koi we have many years of experience heating Koi ponds with conventional heaters through to state of the art inverter air-source heat-pumps with wifi connectivity.

Confused? Why not contact us and we will be happy to assist you purchase a suitable pond heater.

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Pond liner calculator

Use our simple Pond Liner Calculator to estimate the liner and/or underlay size required for your pond.

The result allows for an overlay either side of 30cms. You may wnat to increase or decrease this value depending on your pnd installation.

If you're not sure on what size you need then contact us and we can help.

Measurements are entered in meters. As an example if your pond is 254cm deep at its deepest enter 2.54.

The liner dimensions for your pond including a 30cm over lap are:

Liner length:

Liner width:

An interesting fact for you. The water volume of your pond will be:

Litres:

UK gallons:

Rectangle Pond Volume calculator

Pond Diagram

Measure the length of your pond, the width of your pond and the depth of your pond in meters and enter the measurements into the Utopia Koi easy to use pond volume calculator. This will give the volume in litres.

If you're not sure on what size you need then contact us and we can help.

Measurements are to be entered in meters, for example: 543cm would be entered as 5.43.

The water volume of your pond will be:

Volume in Litres:

Volume in UK gallons:

Circular Pond Volume calculator

Radius Diagram

Measure the diameter of your pond (the distance across the pond at its centre) then divide the diameter in two to get the radius of your pond.

Now measure the depth of your pond and enter the measurements into the Utopia Koi easy to use circular pond volume calculator.

If you're not sure on what size you need then contact us and we can help.

Measurements are to be entered in meters, for example: 543cm would be entered as 5.43.

The water volume of your pond will be:

Volume in Litres:

Volume in UK gallons:

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