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**How many goldfish in a 15 gallon tank** How **many goldfish** should I put in a **tank**? Again, use the “one inch of fish (inches at maturity) per one **gallon**.” We have outlined an estimated amount of **goldfish** that can be placed in each size of **tank**. If you are adding other breeds of fish in addition to your **goldfish**, you must calculate their size in addition to your **goldfish**.

## How Many Goldfish In A 15 Gallon Tank

**How many goldfish should I put in a tank?**

Size of Tank | Common Goldfish (size at maturity = 6”-9 | Fancy Goldfish (size at maturity = 9+”) |

65 Gallon | 6 | 5 |

75 Gallon | 8 | 7 |

100 Gallon | 11 | 10 |

155 Gallon | 17 | 13 |

**Feb 22 2022**

## How Many Fish Should Be In A 10 Gallon Tank?

Start with 2–3 fish, assuming you have at least a 10-gallon tank. If your fish tank is smaller than that, a single fish can get things started. When you get this fish home, feed it lightly. Too much food is a really bad idea. You may notice that it takes the fish a day to eat well.

## How Many Gal Tank Do You Need For 1 Goldfish?

People usually take a 20-gallon big tank for one goldfish. This size is perfect for a single fish because it then has enough space to move, swim and explore. So if you want two goldfish you need a 40-gallon big tank.