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Female Harelquin Rasbora sparring.

Home Forums Fresh and Brackish Water Fishes Female Harelquin Rasbora sparring.

This topic contains 0 replies, has 1 voice, and was last updated by  Gaina 2 years, 1 month ago.

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  • #303767

    Gaina
    Participant

    I have had my little group of 8 Harlequin rasbora since May and I’ve got two which I think are females due to their size and the shape of their ‘lamb chop’ pattern that have become a bite bolshy.  They swim side-by-side flashing their dorsal fins and chase other members of the group who seem to just hang back and not get involved.  All 8 look very healthy and are eating well, although one of them (I think male due to size) is more pearl coloured than the rest.

    Should I just let them sort it out themselves or add more rasbora to the group?  They have no other tank mates at the moment (I’m planning on adding some pygmy Cory’s), and it’s a well planted 65 (UK) litre tank.

     

    Thanks for your help.

    #355043

    Byron Hosking
    Participant

    I would not be concerned.  Eight is a decent number for this species, and what you describe is certainly normal interaction.  Different individual fish can behave differently, but interaction among individuals is to be expected.  I am not aware that this ever develops into a problem, though that doesn’t mean it won’t, but I see this with many shoaling fish.  I have the closely related species Trigonostigma hengeli, and this is observable from time to time.  I like to think the fish are probably “happy” (in the fish sense of the word) when I see interactions.

    Byron.

    #355049

    Gaina
    Participant

    Thanks Byron :-).  It’s funny but I’ve been watching them over the last few days and the quieter ones have started asserting themselves with the biggest female. 

    I’m really ‘into’ Rasbora now, and love learning their new funny little ways.  In fact I’m loving this hobby so much it’ll be a miracle if I haven’t got another tank this time next year… 😉

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