Discussion in 'Fish Discussion' started by evolved, Jul 23, 2016.

'Pairing' Wrasses: That's Not How Any of this Works!

First, we really need some understanding of how wrasses interact and live in their natural environment. In the ocean, most genera of wrasses live...
By evolved, Jul 23, 2016 | |
  1. evolved

    evolved The Wrasse Guy Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 Build Thread Contributor Article Contributor AZ FRAG Member Expert Contributor

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    'Pairing' Wrasses: That's Not How Any of this Works!

    It is something I read often: “Where can I buy a female for my male ____ wrasse?” Or: “I want to buy another ____ wrasse and pair them up!” Wait! Time out for a minute!

    First, we really need some understanding of how wrasses interact and live in their natural environment. In the ocean, most genera of wrasses live in harems, which consists of a group of females to one dominant male. Often, there are a few transitional males in this group as well, which are essentially males-in-waiting – waiting for their chance to overtake the current or become the new dominant male. Within this harem, there is an established hierarchy. The hierarchy exists by the dominance of the terminal male and submission of the females and transitional males. It is this last part which is key; there are no bonded or mated relationships. Quite simply, wrasses do not form pairs! Think similar to Anthias here; not like Clownfish.


    A Natural Harem of Filamented Flashers Wrasses, Dominant Male in Center. (a few other species are also present here, notably female C. cyanopleura)

    Now, let us go a step further and explore the female-male aspect. Wrasses are protogynous hermaphrodites. Settled as a juvenile, they all start as female. Females then transition to male in the wild as harem conditions and the environment allow. As females transition, they become a transitional male, or sometimes called a sub-male. At the sub-male phase, a reversal back to female is technically possible and occasionally happens. If the transition progresses, eventually the state of terminal male is reached. It is at this point the process is, in fact, terminal; reversal back to female is not possible.

    Essentially, all the females in the harem are continuously attempting to become a transitional and eventually dominant male. It is only the hierarchy, and mostly the current dominant male, who prevent this with overriding behavior. The sub males in the harem wait, until the dominant male perishes or until a sub male can out rival the dominant male when challenged. In many ways, it is a lot like a king on a throne; there cannot be a new king until the old one is removed or leaves the throne. And everyone wants to be king!

    In aquaria, it is rather difficult to successfully duplicate nature. All females tend to eventually transition to male, regardless of the presence of a more dominant male. Often, when this occurs in the presence of a dominant male, the new male may end up with best coloration. However, the survival of the old male is always questionable. Sometimes removal of one male becomes necessary for obvious aggression. For these reasons, I no longer bother with more than one wrasse of a single species. I have attempted to keep a male/female pair/trio from the Cirrhilabrus, Halichoeres, and Paracheilinus genera, only to always result in all females turning to male with time. On more than one occasion in both the Cirrhilabrus and Halichoeres genera, I have had males/females spawning with regularity, only for the females to transition to male a few months down the road. It simply is not worth the effort and enduing frustration to attempt these pairs/trios/harems in captivity for the casual reefer.

    As an alternative to keeping pairs/trios/harems of wrasses in aquaria, an aquarist may wish to keep single wrasses of each species mixed with others. So long as selections are made carefully, avoiding certain species and in accords with some simple guidelines, the results will be rewarding. Each wrasse is highly likely to eventually transition to male, providing the best coloration. As an added bonus, the hierarchy of the mixed group lends to displays of finnage and “flashing” of colors on frequent occasions for delightful viewing. However, the only catch with this approach is that some patience may be required. If wrasses are purchased as juveniles or females, it may be a while before they transition into males. This time frame is widely variable and depends not only on the fish’s age and maturity but also the hierarchy established amongst the tank mates. The timing is complicated, but it could be as short as a few weeks to as long as many, many months.

    So please, don’t try to ‘pair’ your wrasses! At best, it may work for a while, but even in those circumstances time is unfortunately against you. Nature always finds a way!



    A Group of Three Female Macropharyngodon bipartitus.
     
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  2. Duke4Life

    Duke4Life Just a crazy eel guy, LMAS R2R Supporter

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    About time :) hahaha
     
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  3. tj w

    tj w Valuable Member

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    The links u provided take me to the seller/vendor feedback.
     
  4. evolved

    evolved The Wrasse Guy Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 Build Thread Contributor Article Contributor AZ FRAG Member Expert Contributor

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    Similar look, but look again. That's the new "Articles" section of the website; a new feature which was rolled out yesterday.
     
  5. tj w

    tj w Valuable Member

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    Just looked again, lol. Don't see any info about pairing wrasses. Only feedback with a couple posts.
     
  6. evolved

    evolved The Wrasse Guy Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 Build Thread Contributor Article Contributor AZ FRAG Member Expert Contributor

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    Hmm, the links are valid and point to the right places.
    How are you accessing the site? Computer? Mobile Browser? App? Tapatalk?
     
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  7. Ljaus

    Ljaus Valuable Member

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    The link works for myself on mobile browser.
     
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  8. mfinn

    mfinn likes zoanthids R2R Supporter Photo of the Month Award Partner Member 2019 Build Thread Contributor

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    Link works for me.
    Great read.
     
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  9. Salty1962

    Salty1962 Wrasse and SPS Lover R2R Supporter R2R Excellence Award Reef Squad Build Thread Contributor

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    Great Read! Thx for putting together.
     
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  10. kschweer

    kschweer Zoas!!! Staff Member Team R2R R2R Supporter R2R Excellence Award Reef Squad Leader Partner Member 2019 NJRC Member Hospitality Award

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    Great article hunter!
     
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  11. saltyhog

    saltyhog blowing bubbles somewhere R2R Supporter R2R Excellence Award Reef Squad Leader Partner Member 2019

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    Been wishing you would write this article!
     
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  12. evolved

    evolved The Wrasse Guy Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 Build Thread Contributor Article Contributor AZ FRAG Member Expert Contributor

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    See, it's been written since December, but Mr. Revhtree drug his feet getting the software add-on for the forum article system. :p
     
  13. tj w

    tj w Valuable Member

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    I'm using my phone, here's what it takes me to. Don't know what's going on with it.[​IMG]
     
  14. shadow1013

    shadow1013 Well-Known Member

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    Weird. It might be because you are on a mobile.

    It's a great article. I'm glad I read it now because we have been trying to find a McCosker male and two female but females are hard to find, well males right now too it seems. I guess we may go with just two males.
     
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  15. reef lover

    reef lover It's a reef thing.... R2R Supporter R2R Excellence Award Reef Squad Reef Tank 365 Build Thread Contributor Hospitality Award Hudson Valley Reef Keepers

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    Great read!! And I love the title....lol.
     
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  16. evolved

    evolved The Wrasse Guy Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 Build Thread Contributor Article Contributor AZ FRAG Member Expert Contributor

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    Yeah, that's odd and I'm not sure why that's happening to you. @revhtree @LowWaterMark
    Of different species, yes? Don't do two of the same.
    Thanks! :D
     
  17. shadow1013

    shadow1013 Well-Known Member

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    Yeah we could do a McCosker and a Carpenter.
     
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  18. revhtree

    revhtree Owner Administrator Staff Member Team R2R R2R Supporter R2R Excellence Award Photo of the Month Award Partner Member 2019 R2R Secret Santa Build Thread Contributor Article Contributor Cyber Monday Sponsor

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    Awesome job Hunter!! Well done.
     
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  19. watchguy123

    watchguy123 Valuable Member R2R Supporter Photo of the Month Award

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    Terrific write up. So well done. Thanks
     
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  20. jsker

    jsker Reefing is all about the adventure Staff Member Team R2R R2R Supporter R2R Excellence Award Partner Member 2019 R2R Secret Santa Reef Tank 365 Build Thread Contributor Article Contributor Hospitality Award

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    Great write up, learned a lot
     
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