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• Single or limited species. This can be for a single individual fish to be kept as a pet, or for a school or breeding group of a single species. This can take a great deal of self-restraint but can be very reward- ing! • Small aquariums. At their best these can be small, stylish focal points that have integral filtration and lighting units. Their water volume is only a few gallons, which means that temperature and water quality can be unstable and changes rapid. However, if aquascaped appropriately and stocked with small fish or invertebrates , they can be fascinating table- top works of art. • Community tank. Take the time to decide what you want from an aquarium. Most people choose a community aquarium of tropical freshwater fish. This gives the widest choice possible of potential species About 25 gallons (95 liters) is the minimum size mini- mum volume for such an aquarium.

A group of goldfish requires a large and well maintained aquarium and the pay- off? An eye catching display!

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Aquarium