Am thinking of getting the kids a goldfish each but have some questions.
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How much do they tend to be (i'll be getting 3) ??
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Can i get 3 that look completely different or do they tend to look quite similar ??
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Can I put all 3 in the same tank ??
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Shall i get a bog standard tank or a plug in one ??
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Are they hard to clean out ? and how often do they need doing ?