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Results 1 to 10 of 25
  1. Default goldfish company

    0 Not allowed!
    do goldfish enjoy the company of other goldfish or can i keep just one goldfish in a tank by itself?
    20 Gallon-4 Platies, 9 Neon Tetras, 1 Albino, 3 Bronze Corydoras, 2 Murray River Rainbowfish
    7.5 Gallon-Stocking
    6 Gallon-1 Male Betta

    2 Gallon-1 Male betta

  2. #2


    0 Not allowed!
    goldfish are social animals and need to have companions...just make sure to not overstock the tank.
    10 gal tropical tank (mainly snails w/7 fish), 5 rats, 4 parakeets, 1 senegal parrot, 2 degus, 1 snake, 1 blue tongue skink, 3 mice, 1 rabbit, 1 ferret, 5 cats, 1 dog

  3. #3


    0 Not allowed!
    my goldfish gets along with everyone. from the pleco to the tetra, to the other goldfish. they love friends

  4. #4


    0 Not allowed!
    Shouldn't have goldfish in with tropicals though...

    ...goldfish should really only go with other goldfish, although I do have cold-water loaches (Dojo/Weather locach) in with mine...but both species are from the same biotope it works...

    White Cloud Mountain Minnows would also work...until the goldfish got large enough to eat them...
    55 g Goldfish Tank - 3 Fancies, 2 Comets
    25 g Tropical Tank - Celestial Pearl Danio/Mixed

  5. Default

    0 Not allowed!
    Keep goldfish with others of like size, I'd keep tetras in a different tank though....
    75 Gallon South Cichlid: Tiger Oscar and Jack Dempsey

    55 Gallon GT Tank: 1 Male GT and 8 Giant Danio

    20 Gallon Long: Waiting for eco-complete planted red substrate that has been delayed 2 weeks due to weather.

    "Don't buy fish at Wal-Mart then go to your local fish store for help when they die. Goto your local fish store first and get educated. It will save you money and many many fishes lives."

  6. #6


    0 Not allowed!
    thats interesting. i have never had any problems between my school of tetra, rasbora and my two enormous goldfish

  7. #7


    0 Not allowed!
    Then you've been lucky.

    The main issue is the water temp. Goldies are cold water. Tropicals are warm water.

    While they can's not ideal to keep goldfish warm or tropicals at the temp. that both can exist, neither is happy.
    55 g Goldfish Tank - 3 Fancies, 2 Comets
    25 g Tropical Tank - Celestial Pearl Danio/Mixed

  8. Default

    0 Not allowed!
    i wasn't asking whether they could go into a tank with tropicals, i meant could a fantail goldfish be in a 10 gal tank by itself with no other fish of the same species or any other species and still be happy?
    20 Gallon-4 Platies, 9 Neon Tetras, 1 Albino, 3 Bronze Corydoras, 2 Murray River Rainbowfish
    7.5 Gallon-Stocking
    6 Gallon-1 Male Betta

    2 Gallon-1 Male betta

  9. #9

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    edmonton, alberta, canada

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    0 Not allowed!
    10g is really the very bare minimum for a single goldfish, usually its 20g for the first goldfish and 10g thereafter, but in a 10g if you have heavy filtration and 50% weekly WC its possible.

  10. #10


    0 Not allowed!
    I am not sure whether there is any harm to a goldfish being in warmer water than they have been kept in historically. The issue that needs to be kept in mind is the rise in metabolic rate. This results in: 1-higher need for oxygen (they should have an air pump on the tank anyways), 2-more filtration (they need a lot anyways), and 3-more water changes (they definitely need a lot of that too). The water change schedule minimum is based on nitrate concentration, which needs to be no more than 20ppm. So although it is not really recommended, if they are already together and there are no issues then I would not worry about it.

    As far as minimum tank size goes, the best guide I have seen is a minimum of a 20 gallon for one, and an additional 10 gallons for every additional goldfish. The other part is that they are schooling. So they are ideally in groups of at least 6. This puts a minimum sized school in a 65-75.
    Aquarist since 1995
    Biologist and Published Author in Multiple Aquarium Magazines
    Owner: Aquarium Maintenance Company
    Advanced Aquarium Concepts: Articles about many aspects of aquarium care.

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