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This is because outside ponds are subject to more climatic extremes such as heat and If Goldfish are kept in a pond, the square inches of surface area per inch of fish should beĭoubled if you don't have a filtering system. In any aquarium or pond fish numbers can be doubled if one of the many filtering options available is used. Go to this page for more detailed information on how much room Goldfish need. This figure is only a guide, but it highlights the importance of surface area and not water volume.Īs an example, if an aquarium is a tall design as some tubular acrylic display aquariums are, without f iltration it will support less fish than an aquarium that is longer than it is tall with the same volume of water. The basic calculation is 24 square inches (155 sq cm) of water surface area per inch (2.54 cm) of fish ( excluding the caudal fin). Because of this they need more gallons of water, and most importantly, more square inches of surface area per inch of fish than do tropical fish. Goldfish are messy creatures, and can grow quite large given the right conditions. How much room do I need for the aquarium/pond and equipment?.
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What variety or varieties do I want to keep as not all varieties can live together?.Am I keeping them indoors in an aquarium or outdoors in a pond?.So to make your Goldfish care easy, and before you start getting any Goldfish, you need to make a few decisions: School of Ryukins displaying excellent health