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Lets Talk Dicrossus

Discussion in 'General Dwarf Cichlids' started by eageraquarist, Feb 23, 2011.

  1. Melanochromis

    Melanochromis Member

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    And I will end up with 12 females and 0 male !!
    As male maculatus no longer exists these days :biggrin::biggrin:

    But hopefully that isn't the case. I've been considering buying more fish just like you said if none of my current 6 is showing any male features soon.
  2. peterK

    peterK Member 5 Year Member

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    Wow that old mac looks great! Such "elderly" dwarfs aren't seen very often.
    And my males:
    [​IMG]
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    I was recently affraid that the dominant male is getting too aggressive. But now smaller one became active as well. Nice sight to see. Perfect fish for comeback to dwarfs:)
  3. dwarf cichlids in Az

    dwarf cichlids in Az New Member 5 Year Member

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    I have had a tro of D Maculastus for over a year that I have been working with I got them to spawn for me about 3 months ago the babys have all been growing like crazy I now have them in a grow out tank with lots of live plants and driftwood they are eating well and I hopeing to sell a few of them to one of the local fish shops I also have a pair of T candi that I have spawned 2 times they seem to like my water here in Tucson
  4. peterK

    peterK Member 5 Year Member

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    I've lost my bigger male recently, probably due to congestion in his intestines.

    Anyway, situation looks even better in the tank as smaller male, not being terrorized now tries to attract females all the time:)
  5. dwarf cichlids in Az

    dwarf cichlids in Az New Member 5 Year Member

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    I just ordered some D filmentosus off aquabib they should here next Tuesday I have kept them in the past but have never been able to breed them I will put them inthe tank that I had the D maculastus in and see if they will spawn. I am moveing the D maculastus in to one of my show tanks for a while untill the fry are selling size.
  6. Ttw

    Ttw Active Member 5 Year Member

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    Do you know your water parameters? I was under the impression that Arizona has hard alkaline water. Do you use an R/O unit or otherwise treat your water?
  7. dwarf cichlids in Az

    dwarf cichlids in Az New Member 5 Year Member

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    My water is all R/O our water here is rather hard but you can change it by adding peat to your filter or by other means I have no trouble keeping any dwarf cichlids that I have tryed to keep here.
  8. gerald

    gerald Well-Known Member 5 Year Member

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  9. Tom C

    Tom C Well-Known Member 5 Year Member

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    I think this is the pics you wanted to share with us?

    [​IMG]

    [​IMG]

    [​IMG]
  10. Cichlid Junkie

    Cichlid Junkie Member 5 Year Member

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    They are great looking fish.
  11. Melanochromis

    Melanochromis Member

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    Very nice !!
    I notice that the rock with eggs in the last picture is in some kind of plastic container. Is there a reason you did this?
  12. gerald

    gerald Well-Known Member 5 Year Member

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    I put the sponge filter in a plastic container and put gravel on top. That way i can add other filter media: lava rock, peat, aragonite, etc. Plus, all the crap doesn't fall back into the tank when I lift the container out. Anyway, that's where she spawned.
  13. Melanochromis

    Melanochromis Member

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    I see. That's an interesting way doing the filter !
  14. ste12000

    ste12000 Member 5 Year Member

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    Nice pics guys, your making me jealous with the Maculata..

    My Filamentosus spawned several days ago and i managed a few pics..

    Im really enjoying this thread, keep up the good work.

    [​IMG]
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  15. ste12000

    ste12000 Member 5 Year Member

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    Hi All, me again.. Ive really stoked the Dicrossus fires over on the BCA forum with a debate on whether Dicrossus can change sex!! The thread can be found here http://www.britishcichlid.org.uk/phpBB3/viewtopic.php?f=6&t=1604 and id love it if a few of you more experienced dwarf cichlid hobbiests can share your knowledge on this touchy subject.

    Do Dicrossus really change sex from a fully fertile female capable of laying eggs to a male capable of fertilising a clutch of eggs?? Your thoughts and opinions would be gratefully received
  16. gerald

    gerald Well-Known Member 5 Year Member

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    So, you're recruiting foreign mercenaries to join your civil war, eh?
  17. ste12000

    ste12000 Member 5 Year Member

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    Ha ha, its not a war although i do tend to upset a few people by standing up for what i believe in.. No my intention was to get more actual keepers of Dicrossus involved in the discussion, what im looking for is someone out there who has had dicrossus change sex..

    It really bugs me that these rumours still persist and yet no one has ever had a female change sex into a fully fuctioning male..
  18. peterK

    peterK Member 5 Year Member

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    My D. maculatus have probably spawned - I suppose it by mood of bigger female, she has taken half of an aquarium, attacked both male and female, and had her pelvic fins coloured up nicely.
    [​IMG]
    But today she shows no agression, so it wasn't a successful spawn.
  19. Mike Wise

    Mike Wise Moderator Staff Member 5 Year Member

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    Steve, I know of NO PUBLISHED SCIENTIFIC PAPER that states that any Dicrossus species can change sex. Ask for references from those who believe otherwise. Papers discussing sex change in Crenicara punctulatum are still problematic since none that I know about could prove that a sexually reproductive female actually changed sex and became a sexually reproductive male. I will say that sex change might be possible, just not proven scientifically. Until controlled tests are done, then everything claimed about sex change is in limbo.
  20. gerald

    gerald Well-Known Member 5 Year Member

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    IF it happens at all (in either genus), it clearly isn't a common occurrence or more aquarists would have seen it. A question of more PRACTICAL interest to aquarists might be whether Dicrossus and Crenicara sex determination has a socially-influenced component. Will two juveniles raised together have a better-than-random probability of becoming a pair (like certain killifish do)? That would be testable: Get 100 small juvies (preferably wild) and 50 ten gal tanks, place 2 in each tank randomly and see what happens. If there's NOT a social influence, then about half the tanks should end up with pairs and the other half with two of same sex.