in your hand Koi fish is a symbol of persistence, email database australiadetermination, wealth, success and good luck. Koi fish intense coloration makes them harder to survive because predators such cats and birds can easily find them. Female koi fish can lay as many as 50,000 eggs depending on the female koi fish size the bigger the female koi fish the number of koi eggs increases too There are 24 koi fish varieties of koi fish and counting. A new koi fish variety could be presented at any time but for now there are the Kohaku, Taisho Sanke, Showa Sanshoku, Tancho, Shiro Utsuri, Hi Utsuri, Ki Utsuri, Asagi, Shusui, Matsuba, Platinum Ogon, Yamabuki Ogon, Kujaku, Hariwake, Kikusui, Kumonryu, Beni Kumonryu, Chagoi, Soragoi, Ochiba Shigure,Goromo, Goshiki, Kikokuryu, and the Kin Kikokuryu.
Koi fish release ammonia in the water. When large number of koi fish inhabit same pond, level of ammonia can increase rapidly and induce poisoning of fish. During the mating season, female produces thousands of eggs that will be fertilized by male’s sperm in the water. Only 50% of fertilized eggs will survive. Koi fish can mate with goldfish because they are closely related. However, they produce sterile offspring. Do koi fish like to be petted. Koi are truly friendly and will not eat other fish or fight with each other.