Pond depth koi sturgeon pond

When it comes to the depth of your pond there are many differing opinions to what the correct depth should be. In reality it really depends on what fish you want to keep and in what country you live in.
Why country? Well temperature is an important factor, deeper water remains warmer for longer so northern regions have longer and harsher winters than southern regions, the longer the water is cold or freezing the cycle of bacteria needed to keep water quality at its peak condition is greatly reduced.
For koi and sturgeon a minimum pond depth is said to be 4 feet, with around 5 feet deep being the normality, it is not unseen to have koi ponds 10 feet deep. This depth factor is very important as although winters vary year to year, your fish need to have that just incase depth for their survival and well being. Deeper water also has its benefits in the summer months as it takes longer to warm deeper water, and when the summer temperatures rise the water can become to warm and then cause stress and oxygen starvation to you pond fish.
A good depth to a pond helps protect temperature fluctuations either in summer and winter. Without going into everything very technical the basic information you need is that the deeper the pond the better and on construction this needs to be considered. It is easy to dig down 2 feet and build up with walls an extra 2 feet which in turn will also produce less waste soil however no matter if you decide on a raised pond or a dug in pond it is important to get the depth right.