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Hello Koi Enthusiasts!

This blog is here to provide a spot for various things that do or might pertain to Koi. This stuff is intended for your entertainment, and is not meant to meet the stricter standards of our ebooks and courses, so use this info carefully and at your own risk. The short articles here may be descriptions of techniques that have proved effective, an introduction to new fish research, facts, graphs or just something FUN about fish! This information can be a springboard for your imagination and an entertaining place to learn something new. Information that was first published in Question of the Week can be found here.

The more we learn about Koi, the more FUN this hobby is - and we always say - if you're not havin' FUN, you're not doin' it right!

What a beautiful tradition. 
HANOI (Reuters) - Vietnamese kicked off preparations for the Lunar New Year festival on Thursday by releasing ornamental carp into rivers and lakes - an age-old ceremony held one week before the “Tet” holiday officially begins.The tradition stems from the fable of three “Kitchen Gods” who ride on the back of a carp before noon to meet a Jade Emperor, to whom they report the affairs of each household.

A great short article about carp/koi and their meanings and use in different countries. 

Some great ideas on plants to repel those nasty bugs without using chemicals that are potentually harmful to your koi. 

This factory is not far from where I live so I wanted to include this story. The feed industry is changing fast and bringing changes to the ingredients that consumers will see in fish feed.
JEROME, IDAHO — Scoular has given an official name to its upcoming barley protein concentrate (BCP) ingredient: Emerge™. Emerge will serve as a sustainable, traceable and non-GMO protein alternative for pet food and aquaculture manufacturers, and “the only barley-based protein for feed customers,” according to the company.

Wow, what a fun time these boys had.  
Adorable footage shows two youngsters splashing around in tiny pools filled with giant Koi Carp.
Fish breeder Worawut Chunkum, 42, put the ornamental fish in plastic blue tubs for their mid-year health check up on July 9.
His sons Taechin, 8, and Nischin, 4, climbed into the temporary homes with the fish, splashing around with them in Nan, Thailand.

The loving send off for a beloved koi. 
The ceremony for the majestic fish was held at Nottingham's Pet Crematorium in West Bridgford - with owner saying it was the first of its kind having previously held funerals for mice, rats, dogs, cats, and even tarantulas during lockdown.

The Koi Carp, which did not have a name, belonged to a man who had spent many hours looking after this "wonderful fish" at the Bestwood Park home he shared with his wife.

These poor koi did not stand a chance with these predators!
An otter with very expensive tastes was filmed eating more than £1,000 worth of koi fish from a garden pond.
The initial prime suspect had been a local heron before a CCTV camera captured the brazen otter in the act on Saturday.
Safety nets and protective wiring had just been installed over the pond in Edinburgh, but they proved no obstacle for the greedy animal.
Footage shows the otter chasing the fish at spectacular speeds, as an equally hungry fox watches from the edge.

A Koi Club contact from a monastery and the saving of a pond and its koi. 
Escondido — 

Depending where you live in the world, your pond will have different critters that can been seen if you look close.  Here are some from Britain.
Summer is a time to leave your pond and its wildlife in peace. However, by looking at your pond at night, you might be surprised at what creatures come out when the sun goes down.

The future of fish feed continues to evolve.  How will it change what we feed our koi?
Veterinarians from RUDN University have developed a way to increase the resistance of carp, the most common fish in fish farms, to the harmful effects of ammonia, which is found in almost all water bodies. The researchers found that the amino acid arginine added to fish food can be helpful. The results are published in the journal Aquaculture.

A short, but very interesting study in ammonia eating bacteria, and how frequency of feeding affects ammonia rates in water.  
..."Feeding leads to a peak in the ammonia production. For the symbiosis between fish and bacteria, it is better if the ammonia production is more constant. It is therefore better to feed often with small amounts than with large amounts once or twice a day. The bacteria -- and therefore the fish -- benefit from this feeding tactic. Nearly all organisms benefit from constancy."

A noted downside to keeping both koi and goldfish together. 
The eye-attacking behaviour of Koi fishes was recorded in a koi–goldfish polyculture system. The attacked fishes suffered from eye ablation, abnormal swimming and suppressed feeding behaviour. There was a significant difference in mean sizes of victims and attackers but the exact motivating stimuli for the observed action was not clear. For future research, the effects of different stocking ratios on aggressive behaviour of koi should also be examined.

Scientific research about swimbladder disorder for koi.  So for our very scientific minded koi lovers, this one is for you. 

Humans have been the only known species to domesticate other animals - until now. 
(picture credit:The Smithsonian’s Carrie Bow Cay Marine Research Station off the coast of Belize.Rohan Brooker)
In our new study, we describe what appears to be first example of a non-human vertebrate domesticating another animal...

A research paper on the reflective properties of koi scale and skin. A must read for our research minded members!

A short article on koi and what they have come to represent.

This is a superb article on koi as depicted in art in both China and Japan. Learn about how the koi symbolize life differently in both cultures. 

A great article on the basics of koi reproduction in your pond.
...It takes approximately a year for eggs to fully develop within the female koi. Eggs formed in the spring of the first year will be dropped in the spring of the following year. The eggs produced by the female are not fertile. The male of the species releases sperm onto the eggs after the female has dropped them. After the spawning has taken place, new eggs will begin to form. These eggs will be released during the next year's spawning.

So how did we really get the most common ornamental fish in the world?  Scientists are working to figure it out. This article is for all you research lovers!

The amazing powers of bioflim and it's future potental.
Researchers have demonstrated that a slimy, yet tough, type of biofilm that certain bacteria make for protection and to help them move around can also be used to separate water and oil. The material may be useful for applications such as cleaning contaminated waters.
Bacterial film separates water from oil (

Its been coming, fish food without the fish. 
Dartmouth scientists have created a more sustainable feed for aquaculture by using a marine microalga co-product as a feed ingredient. The study is the first of its kind to evaluate replacing fishmeal with a co-product in feed designed specifically for Nile tilapia.
Story link: Making aquafeed more sustainable: Scientists develop feeds using a marine microalga co-product (

Amazing research about damselfish domesticating shrimp!
...Now, researchers have discovered fish that seem to be using shrimp in the same way we would use a farm animal.
The team thinks it could be the first example of a vertebrate species – other than human – domesticating another animal.
Story link: These fish may have 'domesticated' shrimp staff to help them farm algae - Science Daily Press

This is the lightweight version of this research. If you want to read the scientific paper use link below. 
A large team of researchers affiliated with multiple institutions in China has sequenced the genomes of a large number of goldfish and carp, revealing much of their shared origin. They've published their results in the Proceedings of the National Academy of Sciences.


!If you're not havin' FUN, you're not doin' it right


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