All about karasu koi

Pronounced kar-rah-soo, this variety of koi gets its name from its black colouring. Almost completely black, this fish from the kawarimono class may exhibit different colours on the ventral area, usually red, orange or yellow. The black colouring rarely fades over time and so you will always be able to savour the true beauty of this koi.

All about karasu koi
Continue reading “All about karasu koi”

Why Koi benefit from natural sunlight

Most animals need natural light in order to thrive and koi certainly benefit from the sunshine. There are many ways in which sunlight will benefit your fish but it is important to strike a good balance of light and shade. There is much to think about when caring for your koi but their need for light should never be overlooked.

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Your Koi Pond in Spring

koi pondWhen spring arrives and temperatures begin to rise, your koi will become more active. It is important that conditions in your pond are perfect for your fish and that you feed your stock correctly as they emerge from their winter fast. Here are our top tips for a heathy pond in spring.

Monitor the water temperature

A floating pond thermometer is a must-have accessory. If you don’t have one, invest in one today! Koi are cold blooded and so cannot regulate their own body temperatures. Their behaviour will be dictated by the water temperature and so it is vital that you know what that is. Your koi should start to become active when the water reaches 50–55F and it is important that you don’t do anything until the water is stable at this temperature.

Koi pond cleaning

If you have rocks at the bottom of your pond, you may need to move your Koi temporarily and clean the pond before you start treating the water and feeding your fish. Debris caught between rocks will impact the water quality and your Koi’s health. Consider removing the rocks as they result in annual disruption for your fish which isn’t beneficial for their wellbeing. The rocks could impact the health of your stock even if you clean your pond every year.

Treat your pond

After a winter of fasting, your fish will be weak and their immune systems vulnerable. It is crucial to attend to any parasitic or bacterial issues before you start feeding your stock. Treat your water with an antibacterial product such as Pond Doctor Anti Bacteria but take care to add the right amount for the volume of your pond.

Activate your filter

Whether you are using a mechanical filter (beads filter) or a biological filter, you may have stopped filtration during the winter. If you did, you need to restart the nitrogen cycle. Clean inside the filter and add beneficial bacteria to the filter or the pond.

Be patient in feeding

Feeding your koi is enjoyable and so you will probably be anxious to get on with it, but don’t rush! Your koi may not be quite ready, even when you have perfectly prepared your pond. They are emerging from a long fasting season and will be hungry but weak and so their bodies are not in a condition to eat their normal diet.

Begin by feeding soft and highly digestible food. You could soak some pellets with water and then feed these to your fish. But this could cloud your pond water, so take care. Alternatively source a digestible food formulated for the season and feed this once every few days to begin with. When the water temperature is consistently 55F or above, you can feed your regular koi food once each day.

Consult the feeding guide of your chosen food and increase the amount you feed your fish as the water temperature rises.

A new kind of car pool

A little research will reveal all the advice you need to create a koi pond for your home. As we have explained on this blog, size matters and it is important to ensure that you can maintain good water quality.

Most people choose to build their koi pond using bricks or cement but one enthusiast has taken the unusual step of using a car!

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Japanese koi accidentally dumped on campus lawn

Japanese koi are associated with good luck and prosperity. But there wasn’t a great deal of good fortune about when a consignment of koi was delivered to a Chinese University recently.

Linyi University in Shandong province had been offered a donation of 13,000 live fish by a fishery firm. The consignment of fish was duly sent to the university and included some 3,000 koi. Unfortunately, disaster struck when the delivery was made. Continue reading “Japanese koi accidentally dumped on campus lawn”

Caring for Koi in the Summer months

As we move into the Spring and with the Summer months really just round the corner, we can all look forward to those bright and warm days which are especially lovely for Koi pond owners. The nicer weather and higher temperatures mean that it is the perfect time to be outside enjoying the beauty of your garden, your pond and the glistening colours of your fish as they dart through the water.

However, this change in weather also comes with a few potential problems which, if you are not aware of in advance, could cause some problems for your Koi. Continue reading “Caring for Koi in the Summer months”

Japanese Koi Competitions

Koi are big business in Japan and 90 percent of the fish produced are exported. Hand-reared for their aesthetic qualities, koi have become a symbol of the country and a single prize specimen can sell for thousands of pounds. The fish recently hit the headlines worldwide when Donald Trump was snapped dumping a box of food into a Tokyo pond. Continue reading “Japanese Koi Competitions”