Young goldfish display spawning behavior

Discussion in 'Fish & Koi Talk' started by Gregpond, Nov 7, 2017.

  1. Gregpond

    Gregpond

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    I have 2 goldfish in a preformed pond shell that is 18" wide by 18" deep.Each fish is around 4" long with one slight longer and more colorful than the other. Even though they are only 2 months old they are already displaying spawning behavior. Has anyone else had this happen when their goldfish were this young?
     
    Gregpond, Nov 7, 2017
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  2. Gregpond

    Meyer Jordan Tadpole

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    Goldfish do not reach sexual maturity until they are about one (1) year old. What you are observing may be just aggressive behavior. Did all of these fish come from the same source?
     
    Meyer Jordan, Nov 7, 2017
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  3. Gregpond

    Gregpond

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    I got them both from the same garden center at the same time. Only the more colorful one is aggressive toward the slightly fatter one but is not trying to hurt it. Hopefully it just means there is a male and a female in there.
     
    Gregpond, Nov 7, 2017
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  4. Gregpond

    Lisak1

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    How do you know how old they are?
     
    Lisak1, Nov 7, 2017
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  5. Gregpond

    CometKeith

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    Hi Greg and welcome. I think it's very unlikely that both your 4" goldfish are only 2 months old. Did the salesperson at the store mention their ages?
     
    CometKeith, Nov 7, 2017
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  6. Gregpond

    Gregpond

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    When I got them it looked like they were no more than a few days old. Photo shows what they looked like when I first got them. If you want to see what they look like now I will take a photo tomorrow.
     

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    Gregpond, Nov 7, 2017
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  7. Gregpond

    Lisak1

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    I think your fish are a little older than you think. Newly hatched goldfish are so teeny you can barely see them.
     
    Lisak1, Nov 7, 2017
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  8. Gregpond

    Gregpond

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    Looking at the size they were when I got them how old do you think they are?
     
    Gregpond, Nov 7, 2017
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  9. Gregpond

    sissy sissy

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    Mine are around that size and are from early spring which here was April so mine around 8 months old are about 4 to 6 inch's long .Some are bigger but they are the ones that gobble down the most food .So some growth or lack of it can come from the amount of food they get .I know even my koi from the beginning only got fed 3 or 4 times a week
     
    sissy, Nov 7, 2017
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  10. Gregpond

    Lisak1

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    Oh, I have no clue really. I just know when we have fry in the pond, it's several months before we can easily see them.
     
    Lisak1, Nov 7, 2017
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  11. Gregpond

    CometKeith

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    Goldfish fry are no larger than an eyelash. Basically they look like a tiny thread with two small round things on one end for eyes.
     
    CometKeith, Nov 8, 2017
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  12. Gregpond

    Gregpond

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    Here is how big they are now.
     

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    Gregpond, Nov 8, 2017
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  13. Gregpond

    Lisak1

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    It's hard to say without any context - they could be one inch long or one foot long.
     
    Lisak1, Nov 8, 2017
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  14. Gregpond

    Gregpond

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    For perspective say their tails are 1" long.
     
    Gregpond, Nov 9, 2017
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  15. Gregpond

    CometKeith

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    It's possible they went from 1.5-2 inches to almost almost 4 inches in a few months. They were definitely a few months old when you got them and not a few days old. Many times I have had young fish mimic some spawning behavior before they were mature enough to really spawn.
     
    CometKeith, Nov 10, 2017
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