Eaglebarret Posted January 28, 2005 Share Posted January 28, 2005 Hey, Just thought you guys might be able to help me, at what size can you tell whether a bristlenose will be male or female? Link to comment Share on other sites More sharing options...
ViS Posted January 28, 2005 Share Posted January 28, 2005 At anywhere from 6cm up to 10cm. I can pretty much tell a female at 5 - 6cm, but it's hard to pick males until they get the bristles. If you look closely at a 6cm fish, the males should show tiny bristles all the way around their nose, but a female will either show none, or maybe just 2 or even 4 small bristles. I've also had males get quite long bristles by 6 or 7 cm. Link to comment Share on other sites More sharing options...
Alan Posted February 1, 2005 Share Posted February 1, 2005 It is more a matter of age rather than size. Some how bristlenose seem to find their way into just about everytank in my room (I'm sure they go walkabout at night). I have found poor neglected, stunted males hidden away in unknown corners who had a face full of bristles @ only 5 cm SL. Then I have had other males not produce bistles untill they were 10 - 12 cm SL. They should definately be showing some at nine months tho. Alan Link to comment Share on other sites More sharing options...
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