Have you ever wondered what it takes to grow Koi big and large? In this video we will explain you the 11 factors that do have an influence on the growth rate of your Koi. With this video you know how you can optimize the circumstances to increase the growth rate!

Learn to understand all 11 factors:
00:00 Intro
00:30 #1 Food and Nutrition
02:00 #2 Feeding multiple times a day
02:41 #3 Water quality
03:37 #4 Doing regular water changes
04:11 #5 Water temperature
05:00 #6 DNA and Genetics
05:43 #7 Sufficient space and environment
06:32 #8 Oxygen
07:19 #9 Effect of age
08:08 #10 Effect of gender on growth rate
08:46 #11 Effect of water flow on growth rate

1. Food and nutrition: Most important for growth is protein. Not just protein, but protein from aquatic life. That means fish meal and for example shrimps. Make sure the main ingredient of a Koi food is Fish meal, that way you are sure most proteins in the food will be derived from fish.

2. Feeding multiple times a day: Not just once or twice a day. But try to feed 6 or 7 times a day. Doing this helps in proving small proportions multiple times a day that help to increase nutritional intake. Using an auto feeder van help you establish this.

3. Water quality: One of the basics that is really important. No ammonia, nitrate and nitrite to start with. But also a as low as possible TDS value. Which actually is one of the main drivers for growth regarding water quality.

4. Water changes: about 10 to 15% fresh water out of the tap weekly is a must. At least when the water quality out of your tap is higher than your pond. And luckily that is the case in most countries.

5. Water temperature: For good growth rates, you want higher water temperatures. 24 to 26 degrees is the best for good growth rates for young Koi up to about 2 years. For Koi older than 2 years old, 23-24 degrees is sufficient.

6. DNA and genetics: If it is not in your Koi, the Koi just won’t reach a large size or fast growth rate. It is all about the genetics in the end. Which determines the maximum growth of a Koi. But overall, all Koi can reach sizes of at least 65-70 cm.

7. The space and environment to grow in: A basic rule of thumb is to use about 1000 litres of water for each Koi. You surely don’t want to overstock your pond. For the best growth rates, I recommend to go no higher than 1 Koi for about 1500 to 2000 litres of water.

8. Oxygen: Always aerate your pond and make sure there is water sprinkling or streaming. Personally I don’t believe Oxygen is one of the main drivers that will boost the growth rate. But make sure there is never a shortage of oxygen at least.

9. Age: Younger Koi will always grow faster than large Koi, that won’t change with even the best conditions you can offer your Koi. Make sure to get the best out of your Koi in the first couple of years.

10. Gender and growth rate: what is the effect of male or female Koi on the growth rate? Watch the video and find out!

11. The effect of water flow on growth rate of Koi: the faster water flows, the higher the growth rate? Is it that simply? Personally I think this is not the case. Compare with mud ponds in Japan, some mud ponds do not even have electricity to have running pumps. But have you seen the growth rates in there? It can be impressive!

With these 11 factors you can reach maximum growth of your Koi. But remember that it is most important to provide good conditions. This will ensure healthy and happy Koi. Koi will grow by itself, as long as you do your best to maintain the circumstances as good as possible.

If you have any questions regarding the growth of your Koi, please feel free to ask it in the comments. I will do my best to answer your questions or answer it in the next upcoming video’s.

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Thank you for watching and see you in the next episode!

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