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Oreichthys species i.d.

Home Forums Fresh and Brackish Water Fishes Oreichthys species i.d.

This topic contains 0 replies, has 1 voice, and was last updated by  andy rushworth 3 years, 9 months ago.

Viewing 15 posts - 1 through 15 (of 18 total)
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  • #302934

    andreastjern
    Participant

    These were labelled Oreichthys crenuchoides in the store (and by the Asian exporter) and I was told they were young specimens. Having researched a little, I’m quite sure they’re not crenuchoides.

    Because of the pattern of black spots, I think they are Oreichthys parvus. It’s probably hard to tell from the photos, but the dorsal fins are red, especially in the males.

    Oreichthys-003-web.jpgOreichthys-019-web.jpg

     

     

    #351807

    Matt
    Keymaster

    Welcome to the site Andreas. :) Think I’d agree with O. parvus. What do you reckon @andy rushworth ?

    #351811

    andreastjern
    Participant

    Thanks, Matt. Great site.

    #351813

    andy rushworth
    Participant

    Sure do  ,where did ya get them Andreas :) ? Parvus is the Thai Oreichthys and seems to be available at the moment  ,though they haven’t come my way yet :(  ,really pretty little fish !

    #351814

    andreastjern
    Participant

    OK, I’ll consider them parvus then…

    Bought them at a store in South-East Norway called Dahls Dyrerike. Great selection there. Can check who they bought them from if you’re interested.

     

     

    #351816

    andy rushworth
    Participant

    Hi Andreas , a bit far for me :) they’ll no doubt turn up eventually  but thanks anyway .

     

    How many did you get ,and what observations have you made thus far ?

    #351820

    andreastjern
    Participant

    I bought ten. They were very thin at first but they eat well and they have no objection to regular flakes. They also seem to enjoy protein-rich fare such as frozen Daphnia. I haven’t tried any plant-based foods yet. For now they seem happy with a pH a little above neutral, but I read that their habitats include peat swamps as well as other environments so I guess I’ll eventually try conditions a little more on the acidic side to induce spawning.

     

    I said something about males and females earlier, but when I look at them again I’m not really quite sure about the sexing. They’re still a little too young and thin to use the bellies as a sure sign.

    My guess is that the individuals with a less distinct black tip to the dorsal fin are the females. They also seem to be slightly more golden around the head.

    The ones with distinctly black fin tips seem to be doing most of the sparring with extended fins. But this could be simply a matter of changing colors when they become agitated… We’ll see when the females start getting round bellies.

     

     

    #351831

    andy rushworth
    Participant

    Hi Andreas , thanks for your observations ,I’d agree with the sparring with extended fins as being a male indicator ,females usually tend to be more docile as a rule ?

     

    http://www.google.co.uk/imgres?hl=en&biw=1024&bih=677&tbm=isch&tbnid=s79QUwlixrotNM:&imgrefurl=http://siamensis.org/webboard/topic/37182&docid=zpSVfbRlPlLQ3M&imgurl=http://siamensis.org/sites/default/files/imagecache/webboard_preview/oreichthys_parvus2.jpg&w=750&h=480&ei=B103UtP_I4WmhAed44HQDQ&zoom=1&ved=1t:3588,r:95,s:0,i:373&iact=rc&page=7&tbnh=180&tbnw=281&start=85&ndsp=14&tx=123&ty=76

     

    A couple of males in the wild Cool great looking fish ,it would be great to see yours in a month or two when fully conditioned !

    #351833

    andreastjern
    Participant

    Yeah, thanks, great photo – looks like mine only much more yellow in the fins on the ones in the wild. I’ll post another image in a while…

    #352444

    andreastjern
    Participant

    oreichthys-female-251.jpgoreichthys-male-230-web.jpg

    My Oreichthys are showing some more color, and it seems I got the males and females mixed up earlier. It’s now fairly obvious that the females are the ones with the black spot near the top of their dorsal fins. They generally have duller colors. The males have larger dorsal fins that are red with no black spot. The pelvic fins on the males get red when they are agitated, and they show some yellow on the head and on the caudal fin. They also have a stronger black spot or band on their anal fins than the females. 

    These are nice little fish, but less colorful than some other Oreichthys that I’ve seen. I suppose they are parvus or a closely related species. If anyone has seen similar specimens I’d be interested to hear. Unfortunately I have no reliable location information.

     

    #352445

    andreastjern
    Participant

    oreichthys-male-250-web-2.jpgOne more image of a male.

    #352456

    andy rushworth
    Participant

     

    Hi Andreas , looking great ,thanks for posting ! I’ve thus far had no luck in obtaining any of these Cry but still on the lookout , I did however manage to obtain some Indian Oreichthys Cosuatus , which have settled in very nicely and are really beautiful ! have Parvus been on offer regularly or was it a chance encounter ?

    #352464

    andreastjern
    Participant

    Thanks Andy, the shop I bought from ordered directly from an Asian exporter, and they were supposed to be O. crenuchoides. I haven’t seen them anywhere else.

    Any experience with breeding the cosuatis so far?

     

     

     

     

     

    #352465

    andy rushworth
    Participant

    You did well there because O. crenuchoides are more available Smile not really had the Cosuatus too long so if they do they do Laugh there is plenty of Java Moss in their tank so ? they share a 36x15x15 with a group of Pethia Aurea which do spawn regularly as I see the males courting the plump females ! I seem to think Oreichthys group like to use leaves as a spawning site , so something like H.polysperma or the plastic equivalant might be a useful addition to their home ?

    #352505

    andy rushworth
    Participant

    Hi Andreas 

    I’ve spoken to Chaiwut Grudpan a Thai chap who knows Parvus very well and he has cofirmed that they are indeed Parvus and you are correct about the sex of them too :)

    Yours Andy !

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