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One more for Jutta (rhino)

Home Forums Fresh and Brackish Water Fishes One more for Jutta (rhino)

This topic contains 0 replies, has 1 voice, and was last updated by  Ferrika 5 years, 7 months ago.

Viewing 13 posts - 1 through 13 (of 13 total)
  • Author
    Posts
  • #303122

    mikev
    Participant

    Hi Jutta,

    Could you look at two more bad photos please?

    http://rainbow-fish.org/fishpic/brunn/goby.jpg
    http://rainbow-fish.org/fishpic/brunn/goby2.jpg

    This may or may not be the same fish I asked you about bef ore (photos in
    http://rainbow-fish.org/fishpic/brunn/
    ).. again, label as r.brunneus, but another importer, this time one local which makes it easier to try to get both sexes. I think it is the same fish, spots on the first photo… is the 2nd a female?
    I’m asking for more/better photos, these only arrived yesterday.

    Thanks!

    #352614

    Ferrika
    Participant

    Hi Mike,

    this looks like a goby from the duospilus-complex. In the first pic you can see a black dot at the base of the pectoral fin. Something I’ve never seen in one of the brunneus-complex. Do you know the size of this animal? I suspect, it’s a goby from Hainan…. but I can’t tell you more. The pics are too bad Confused

    #352616

    mikev
    Participant

    Thanks a lot, Jutta. I’ll try to get better photos. Per vendor, very small.

    #352640

    mikev
    Participant
    #352641

    Ferrika
    Participant

    Not really, Mike. Definitely a duospilus-complex, but I can’t identify, what. Have you ever asked how big the animal is?

    #352642

    mikev
    Participant

    I’ll ask again, he only said small. Thanks!

    #352643

    mikev
    Participant

    An offtopic question: I still cannot get anywhere with rubro breeding… I wonder if the right approach is to isolate a pair, perhaps having two(actually three) males in one tank is the cause of the problems?

    Instead of breeding, I’m seeing progressively bizarre behavior…. one time I had two males in the breeding cave… yesterday I had a female in the cave, with two males biting each other on the mouth just outside of the cave, I had to break this crap, seeing that they are getting exhausted….

    #352645

    Ferrika
    Participant

    Yes, Mike, I know all this problems. This is, if two males are equally strong. Than it may be indeed better, to seperate a pair. I have actually the same problem. Three male that can’t agree, who will be the strongest in the tank…..

    #352647

    mikev
    Participant

    Jutta,

    May I ask you to look at the both sets of pics again and offer an opinion if this is one species or two? I thought the first set was a brunneus complex, 2nd diospilus?

    Not sure what I’m doing yet… really difficult to set up more tanks now, I need an extra tank for rubros too, plus way too cold now to ship I think :(

    Both sets are in http://rainbow-fish.org/fishpic/brunn/
    with the 1st set being the DSC_* files.

    TYVM!

    #352648

    Ferrika
    Participant

    It’s very difficult to see. Some pics look like R. mekongianus, some like R. maculafasciatus. May be, the animals, that look like R. mekongianus are young maculafasciatus…. I really can not commit myself on the quality of the images.

    #352664

    Matt
    Keymaster

    The brunneus-group fish looks quite similar to some forms of R. flumineus as well: http://ffish.asia/photos/sp/P1_071008e010_20130707.jpg

    Could be worth investigating given that Niwaëlla delicata has just appeared in the trade and both are native to Honshu – think I remember reading they even occur together.

    #352666

    mikev
    Participant

    Per 2nd vendor, the size is about 0.5″ … guess no sexing at this size.

    Matt, thanks,… there may be two different “brunneus” imported. 2nd time indeed at the same time as Niwaëlla delicata and there were two more Japanese gobies on the list at the same time, so does seem Japan. The 1st time (one month earlier) the origin is not clear.

    #352670

    Ferrika
    Participant

    I think, you’re right, Matt. All this Rhinogobius from the brunneus-complex are so difficult for identifying, because there are too few pics of the individual species. It is always amazing that you always find this, Matt.

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