Use a concrete pond for larger back yard koi pond projects

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A concrete pond is the material of choice for a large and deep specialist koi pond. A concrete pond is not the right choice to build a small back yard pond or small garden pond in mnay cases

If you want to grow large koi then there really is no option to a highly engineered complex, probably concrete pond.

koi fish

Just do not expect to get one of these koi fish shown in the picture to grow in a back yard pond of 200 gallons or so even if a concrete pond is built. To allow koi t grow large and for the koi to develop shape, colour and fitness large ponds need to be builf ... say at leas 4,000 gallons. Even 4,000 gallon koi ponds are on the small side. This type of koi pond needs engineering atention.


This is a champion koi - photo courtesy of Nigel Caddock, "Nishikigoi International". This magazine is a MUST HAVE if you are seriously interested in building a large concrete pond.

This subject of engineered concrete ponds is beyond the scope of this web site. However this does not mean that koi are unsuitable for back yard ponds. Quite the opposite their colours, grace and beauty make them almost an essential ingredient for a back yard pond of any size and shape. The subject of koi keeping keeps many a great mind occupied for long stretches of time and can involve fortunes of money.

In any case should you ever want to own or grow large koi then make sure your pond depth is at the very least four feet and preferably six feet deep. This allows a more constant temperature environment for one thing.


If you really want a large concrete pond then it is critically important that you employ a skilled pond builder. People who build good swimming pools do not necessarily build a good koi pond where bottom drains, wall design and filter requirements are very important design considerations.

Koi grow large when well fed and cared for in large concrete ponds with state of the art filtration mechanisms, and in an environment where they can exercise by swimming in water which does not usually go below 15 degrees centigrade. Sounds odd doesn't it when I talk of koi swimming for exercise?

For larger pond filters in the US click here

Large Pond Filters Aquabead Pond Bio Filters For Koi Ponds and for expert information on all matters to dow ith koi keeping try Ben Helm's site

Building true koi ponds is for the specialist. Building koi ponds in the garden for casual enjoyment by the family is not.

To be successful in the growing of "jumbo" koi the building of koi ponds must take into account:

  • Bottom drains

  • Correct shape

  • Pond skimmer systems

  • Good depth (6ft and more)

  • High flow rates

  • Winter heating

  • Very high and specialised biofiltration

  • capacity

  • Spare pumps

  • Highly regular and thorough cleaning

  • regimes

  • Large air pumps

  • Highly specialised feeding regimes

Read Nigel Caddoc's web site and his world class unique koi keeping magazine at . This site really is very special as are the people involved in running it. I saw Nigel recently on a trip to the UK's most important trade gardening show. He was assisting the demonstration of a very modern highly engineered and revolutionery koi pond filter made from stainless steel and which used Kaldnes biomedia. What made the filter more interesting to me was the fact it was being made in my home town of Wigan in the UK ... memories of time gone by, lots of time.

Our company won the best new product of the year award in the water gardening section at GLEE 2002 that was held in Birmingham at the NEC. It was a fibreglass water feature that resembled a cave wall.

Pond Solver Books  

Take a look at Peter May's Perfect Pond Recipe book .... available by download or print and full of self explantory sketches

The UK Pond Doctor and pondkeeping answers site all about koi and koi ponds this massive and growing information site contains expert advice on all matters related to koi pond keeping

Peter May's new website is called Pond Solutions ... Peter is an exceptionally gifted landscaper, artist, illustrator and author. Unlike so many he has done it all himself and many times so he knows the real hassles and how to solve any pond problem

I have read your book with interest and have found it most interesting. I wish I had read it before constructing my pond Gordon Powell,

I read your book cover to cover last night ., Excellent, this is just what I was looking for. It is hard to find such a comprehensive collection of information in one place. I have been searching the web for about 4 months. Brett Salavoy,