martib Posted December 21, 2012 Report Share Posted December 21, 2012 hey all as the title says,im going to look at some tomorrow and they are about 4/5cm. cheers marty Link to comment Share on other sites More sharing options...
ricksfish Posted December 21, 2012 Report Share Posted December 21, 2012 There is one theory that males will have a spongy head at the nose where he will grow bristles and a female will be hard and boney at the nose. Link to comment Share on other sites More sharing options...
Sephiroth Posted December 21, 2012 Report Share Posted December 21, 2012 At 5cm they should already have tiny bristles, if not, then tiny little nobs on their nose if they are males haha. If any of them have even little nobs on their nose don't buy them as females. Seph Link to comment Share on other sites More sharing options...
Kaizen088 Posted December 21, 2012 Report Share Posted December 21, 2012 (edited) I Have my own theory from breeding Bristlenose a few years ago. Have had success even after a few weeks old. Males tend have a broader mouth. Females also have a very thin protruding lip. Easiest when looking at a bunch of fry up against the glass. Anyone heard of this theory? The Sturisoma pair in the pic are a perfect example of what I'm talking about. Edited December 21, 2012 by Kaizen088 Link to comment Share on other sites More sharing options...
