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One inch of goldfish per gallon of water is often recommended, so you could keep around 7-8 small goldfish in a 30 gallon aquarium. Keep in mind that as goldfish grow, they will require more space, so fewer fish may be ideal for the long term. It's always best to research the specific type of goldfish you have to ensure they have enough space to thrive.
One goldfish needs a 30-gallon tank, and an additional ten-gallons per additional goldfish. Goldfish can grow to be 10-12-inches long.
You need to provide 1 gallon of water per inch of fish. Goldfish get along fine with other goldfish.
None. Goldfish should have a minimum of ten gallons of water per fish if you wish for them to live out their full lifespan of ~20 years.
20 gallons for one fish and 10 gallon for each addition goldfish. See the related link for further information.
depends, can a ten gallon tank live in a goldfish
The rule of thumb is usually a gallon per fish, so six gallons would be good. If the fish are on the large side (like a goldfish), then a seven gallon tank would be ideal.
No. A 10 gallon tank is barely big enough to keep a single goldfish in.
The rule is 1 inch per gallon. So if a fish is 2 inches then it gets 2 gallons, and so on. Also know that goldfish are extremely dirty fish and for a small 5 gallon tank it would be best to have only 1 or 2.
You cannot put any goldfish in a 2 gallon tank.One fancy goldfish needs at minimum a 20 gallon tank on it's own. This is not just because of their adult size potential, but also because they are very messy fish and produce a high amount of waste.
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Although the goldfish are very small and it may be tempting to put many goldfish in a tank that large, you have to resist these urges if you want your fish to be happy and healthy. Keep in mind that goldfish grow very large: 6-8 inches for the fancies, 6-12 inches for the more common ones. The rule of thumb "one inch of fish per gallon" just does not work with goldfish. A more accurate measurement of goldfish per gallon would be " for each inch of goldfish allow 3-4 gallons of water". Hope this helps- and remember though the fish are small now, they will soon grow very large and beautiful.