Why Do Koi Lose Their Color? 0 3868

Koi carp can be some of the most visually impressive fish, with striking color and pattern combinations. Koi are renowned for their bright, vibrant colors, and the healthy koi will be bright in appearance, with crisp, clear colors visible across their bodies.

However, in some cases, koi carp may begin to lose their colour. It begins to fade, look dull or otherwise appear to be on the wane. This can happen over a long period of time or in some cases, very quickly. Suddenly seeing your koi lose its color can of course be very alarming for the koi carp keeper.

So why do koi lose their color? If you are concerned about your koi losing their color and want to know why this might be happening, read on to find out more…

Food quality

Koi carp need to be fed top quality, nutritionally complete foods in order to keep their colors bright and allow them to reach their full potential. Feeding cheap or sub-standard food is usually the most obvious culprit in koi losing their color.

Why do koi lose their colour?Assess carefully what you are feeding your koi and ensure that they are getting all of the vitamins, minerals and supplements that they need, particularly if you find that all of your koi are gradually losing their color rather than just one fish.


The color of koi changes gradually throughout their lives, and as young koi reach maturity, their colors and patterns can appear to be very different from those that they started life with.

If your koi are young or are not yet fully grown, age-related color changes are to be expected.

Water temperature

It may come as a surprise to many koi keepers, but koi actually display the brightest colors during cooler weather. When the weather is very cold, their colors will be less impressive, but if you compare the coloration of your koi in the height of summer to the cooler days of spring or fall, you will almost certainly notice that they are brighter when the weather is not so hot.


Stress can lead to a wide range of symptoms in the koi, including the loss of their previously bright colors. This is particularly true at times when koi are breeding, as the mating process and being pursued by the male fish is very stressful for your female koi, so you can expect their colors to dim somewhat while this process is underway.

Sickness and ill health

A dull appearance or the fading of your koi?s colors can also be a sign of ill health or sickness. If one of your fish looks under the weather then look more closely to see if there are other signs of problems.

Poor water quality, lack of oxygen and illnesses can all lead to a loss of colour. You should always monitor your fish?s health and your koi pond’s water quality and correct any problems quickly.

Learn more about koi carp…

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5 reasons a tortoise is the perfect pet 0 1288

Tortoises are adorable animals and they are great pets to keep in your home. Here we explore the top five reasons why you should consider getting a tortoise as a pet.

1. Low maintenance

With some space to enjoy and some lettuce to chomp on, a tortoise will be pretty happy. This low maintenance pet won’t need walking twice a day and will keep themselves entertained.

2. Tortoises are very affordable

Tortoises are very affordable to keep in your home. Once they are set up with a comfortable space to enjoy, there will be very little cost to upkeep them. Their food is cheap and their space remains clean for long periods without needing to be changed.

3. Tortoises live long lives

Tortoises will also be around for a long time. They can live from 14 to 30 years or more depending on the species, which means you will have a friend for years to come. Unlike most other pets, you will be able to enjoy your tortoise for vast periods of your life.

4. They’re harmless

Tortoises are far more harmless than cats and dogs. While they may bite your finger if you put it in their mouth, little damage will be done. A tortoise is a very safe pet to have in the home and is great when you have children too.

5. Tortoises are loyal

Tortoises are unlike most pets in that they are happy in the space you give them. With room to wander around, food to eat and occasional trips into the garden to play and eat grass, the tortoise will be happy. Tortoises will not try to run away from you like dogs, hamsters or guinea pigs.

Tortoises are adorable creatures to keep as pets and they are a very practical and affordable animal to have in your home. Unlike many pets, it is easy to keep a tortoise and to keep them happy for a long time. With a tortoise, you will have a friend for years and years to come.

Keeping exotic fish as pets 0 1799

Exotic fish

There’s something mesmerising about watching a tank full of brightly coloured fish swim around. Do they make good pets though? Is it hard to keep exotic fish? With the right pet care and pet advice, exotic fish make great, if unusual pets.

Tank size

Go for the biggest sized tank you can afford and have room for. The bigger your tank, the easier you’ll find keeping the balance of the water right. Your fish need plenty of room to swim too. Aim for at least a 20-gallon tank.

Tank set-up

You’re going to need a heater to warm the water. You’ll also need a filter to ensure clean, healthy water, which is crucial for fish to thrive. It’s advisable to add an air pump to boost the oxygen levels.

You’ll also need a light for the tank, and a timer for the light, so it’s not on all the time. Bear in mind a fish tank should be placed out of direct sunlight, away from draughts and heating sources.

On top of the things that make your tank work you’re going to need everything that goes into your tank; gravel for the bottom, plants, and decorative caves and tunnels so your fish can hide if they want to.

You can usually buy aquarium starter kits at pet food stores if you want help in pulling everything together.

Getting the water right

The filter will cycle your water to make it suitable for fish to live in, never add tap water directly to the tank. You need to de-chlorinate it first. You can also add a water treatment to help keep the water healthy between changes.

You should change about 10-15% of the water each week to keep it clean and healthy for the fish. Never do a full tank change once your fish are in the tank.

Choosing your fish

When you choose your fish, make sure you start introducing them slowly – this will help you identify if you’ve got the water balance right, and at this point, your tanks eco-system is still developing, so adding lots of fish can damage it.

There’s a wide range of tropical fish to choose from – Cichlids, Betta and Swordtails are good starter fish, and are nice to look at. Never mix goldfish and tropical fish together.