Blue spot jawfish pair - New Broodstock

Discussion in 'Aquatics Breeding (Fish, coral, inverts)' started by Chad Vossen, Aug 23, 2016.

  1. Chad Vossen

    Chad Vossen Vossen kinda rhymes with awesome
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    We've finally isolated what appears to be a pair of blue spot jawfish in our 150 gallon. The female is located at the base of the rock.

    Now our plan is to feed heavily and add more rock rubble for burrow construction. We hope to see evidence of spawning by the end of the year. Their next spawning season is next spring, so we may have to wait.

    [youtube]ON3ZTKxalOw[/youtube]
     
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  2. Mandarin_Jake

    Mandarin_Jake Senior Member
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  3. csb123

    csb123 Senior Member
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    Chad, is there a way to manipulate water temps and photoperiod to trick them into spawning?
     
  4. danknuc

    danknuc TCMAS Event Committee
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    I had a similar question, how do they know it is Spring? Is it based on water temps, lunar cycles, sun location, etc.? How do you simulate that in the aquarium?
     
  5. marty9876

    marty9876 Banned
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    Same thing women have been telling me for years...
     
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  6. mnmuskyman2011

    mnmuskyman2011 Senior Member
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    Blue spots are my favorite fish. I would definitely be interested in one when you are successful so keep me in mind.
     
  7. Leicester56

    Leicester56 I contributed!
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    Awesome! Question- I have heard this species does best at lower temperatures than most reef tanks are kept at. Thoughts?
     
  8. OP
    Chad Vossen

    Chad Vossen Vossen kinda rhymes with awesome
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    They do best at lower temps, but during the summer, they may experience 82 in their natural habitat. Year round at this temp may not be the best thing for these jawfish, but a few months of the year is perfectly normal. During the winter, we'll allow the temp to drop to the mid to low 70s.

    Water temperature and photo period are probably the two biggest factors. They're next to a window, so they can tell when it's a short day or a long day.
     
  9. OP
    Chad Vossen

    Chad Vossen Vossen kinda rhymes with awesome
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    Also worth noting that getting these guys to spawn is not unusual at all. There's a spawning pair at the MN zoo right now in their reef tank. They spawn like dottybacks, and hide the eggs in the burrow. That's why you'll never see a photo of them mouth brooding, like you do with pearly jawfish. Basically, we'll need to watch the females belly to determine when she's producing eggs, then start leaving our larval traps on the tank for possible eggs hatching.

    It's going to be an interesting project.
     
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  10. Leicester56

    Leicester56 I contributed!
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    I love this project! Please keep us updated!
     
  11. CoralKings

    CoralKings Junior Member
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    My favorite jawfish. I herd they arent a hardy fish.
     
  12. CoralKings

    CoralKings Junior Member
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    Yes, please keep us updated on the fish. I would like to get one.
     
  13. y2kong

    y2kong Senior Member
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    Following this thread. Beautiful fishes!
     
  14. OP
    Chad Vossen

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    Just an update for this post. Jawfish are doing great. We have a trio that's settled in and appear to be in spawning condition. The male is now displaying to the females regularly.


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    [​IMG]

    [youtube]pNH-TtVvjhs[/youtube]
     
  15. OP
    Chad Vossen

    Chad Vossen Vossen kinda rhymes with awesome
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    [Youtube]ShOBXfdhFCI[/youtube]
     
  16. patent

    patent Ok Moderator
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    Pretty fish. Almost makes me want a sandbed.
     
  17. cathorn

    cathorn Senior Member
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    Thanks Chad. A very beautiful fish. I do not know anything about the Jawfish, will have to do some research tonight. Will the male spawn with more than 1 female? Thanks for the video.
     
  18. csb123

    csb123 Senior Member
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    That's an unusual jaw fish coloration where the back half is so dark. Is that spawning colors or just a variant?
     
  19. Leicester56

    Leicester56 I contributed!
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  20. OP
    Chad Vossen

    Chad Vossen Vossen kinda rhymes with awesome
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    It's their breeding colors. He can look like a normal jawfish within 5 seconds if he wants to.
     

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