There are more than 20,000 different fish species that exist in nature with only a few of those able to survive in freshwater, and only a few more of this tiny group able to survive in ponds.
However, despite the fact that there are only a few freshwater species that can be kept in our gardens there are still a large variety of different habits, colours, hybrids, and shapes to choose from, and every year with the continual cross breeding, there are new types of varieties that become available.
One of the primary fish breeds that can be kept alive in captivity and is often cross bred is the goldfish, which is easily the most commonly known fish in the world. If kept properly the goldfish can live for around 15 years, with millions bred each year, making it quite inexpensive to purchase a few for your garden.
Due to the fact that goldfish actually descended from Siberia and China, the breed is tough and able to take practically freezing temperatures, allowing them to make it through some cold winters in your garden. When kept properly, they can grow to reach about 30cm from head to tail, if the pool is large enough to allow for such growth.
However, the fancy types of goldfish cannot reach the same lengths, with only gold and solid goldfish able to reach the largest lengths. Of course, with centuries of breeding goldfish there are now more than 100 different varieties, making it hard to choose which one to take home.
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