The initial step you should take before choosing anything is to think about which fish you would like. Are you wanting Koi Carp for your pond? Is it simply gold fish you’re after? Various fish have vastly diverse needs, and also catering for these is paramount to establishing and looking after a healthy eco-system.
They are the most favored type of fish, and have around 13 different breeds to pick from. Koi usually like to be at an optimum temperature of Fifteen degrees C and may not prosper in very long periods of cold weather.
Not just a classic favorite, goldfish really are a tough breed and very easy to keep. They can endure in most outside temperatures, and also prosper best in water with a higher oxygen content.
A surface feeding fish, this is a good selection for those who do not want a garish breed. They often develop to a size of 35cm and are good for keeping the surface of the water clean.