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How Many Fancy Goldfish In A 90 Gallon? Question

Discussion in 'Goldfish' started by laneyy123, Apr 13, 2019.

  1. laneyy123New MemberMember

    I have a 90 gallon tank that is fully cycled, Ive had 2 fancy goldfish in there for about a month, I got them as babies so they are still pretty small. I’m just wondering how many would be good for the tank, I’m thinking like a max of 5. I currently have the sunsun 304B canister filter with 525gph filtration, and I do about 35-40% water change every week.
  2. RepolieWell Known MemberMember

    I'm no fancy goldfish expert, but there's a stocking rule that goes "20 gallons for the first goldfish and 10 gallons for every additional goldfish."
  3. SkavatarWell Known MemberMember

    7 or 8.
  4. TheeLadyGWell Known MemberMember

    I like to go with swimming inches over "per gallon" rules. Think about the height and depth, I mean, that's their whole world there. I feel like less is more for giving them good swimming space to explore and stretch their beautiful fins. Goldfish use every part of the tank, not just the bottom or top like some types of fish. I'm aiming for 3 in my 75 gal and then I'm quitting! So maybe max out at 5 (depending on the variety)