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- Goldfish is one of the most popular aquarium fish.
- It is a freshwater fish which is kept as a pet in indoor aquariums.
- They have a lifespan averaging about 10-15 years, with some varieties living up to 30 years.
- Their lifespan can also be reduced if they are not kept in clean water.
- They come in a variety of colours including red, orange, blueish-grey, brown, yellow, white, and black.
- They are omnivores, eating both plants and animals.
- Various types of goldfish include the Comet goldfish, the Shubunkin goldfish and the Tamasaba goldfish.
- Goldfish do not have any teeth or barbel sensory organs, so cannot taste food.
- They have a memory-span of at least three months and can distinguish between different shapes and colours.
- Goldfish live and sleep with their eyes open, because they don’t have eyelids.
