Carlos & Siran Posted June 9, 2009 Report Share Posted June 9, 2009 OK, so we bought our tank off trade me, and It came with a fair number of breeding platties. I'm not really a platty fulla so we bundled them all up and gave them to our local fish store. Aside from two males that caught our eye, a big bright yellow fulla with a bright orange tail and a wee bright orange boy with a black tail. Now I've heard that platties can change their sex, but I thought "Naw, It'll take ages, she'll be right for a while!" but a day latter I noticed the big orange and yellow boy chasing the other one around, but not aggressively, he seemed more attentive as if hoping for a bit of how's your father. I'm pretty positive we sexed them correctly, we spent several days observing them all and the orange one held it's rear fin up all the time. But now it's rear fin is fanned out and held down. So is it possible for him to change sex so quickly?, or is it more likely we sexed him incorrectly? Cheers guys. Quote Link to comment Share on other sites More sharing options...
BikBok Posted June 9, 2009 Report Share Posted June 9, 2009 Hmmm, arn't they like guppies .. the male has a gonopodium .. that's what I would be looking for Quote Link to comment Share on other sites More sharing options...
LYNDYLOO Posted June 9, 2009 Report Share Posted June 9, 2009 You hit the nail on the head Bikbok, Platties amd Swords are sexed by their Gonopodium, if it has one it's a boy if not a girl Carlos: Now your thinking what is a gonopodium, this is the pointy thing that is situated at the base if its belly in between its 2 bottom fins. Have a good look and I'm sure you will be able to work out which bit I'm talking about. Lynda Quote Link to comment Share on other sites More sharing options...
Mel Posted June 9, 2009 Report Share Posted June 9, 2009 Might be better posting this in the livebearer section, you'll get a better reponse - but I am sure platies can change sexes just like the swordtail can. Quote Link to comment Share on other sites More sharing options...
LYNDYLOO Posted June 9, 2009 Report Share Posted June 9, 2009 For a start it would help if they tried looking in the right place, to tell the sex of this fish :roll: Quote Link to comment Share on other sites More sharing options...
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