How can you tell if a sunburst platy is male or female?

Answer 1

female
http://fish.orbust.net/images/female.jpg
male
http://fish.orbust.net/images/male2.jpg


Hope that helps
Good luck


EB

Answer 2

http://www.wetwebmedia.com/FWSubWebIndex/livebearfaqs.htm
This will tell you all about it, but basically, the females get big bellies, and have triangular anal fins. The anal fin is the fin on the bottom closest to the tail. Males have a little spike lookinfg fin instead. You can really see it on male swordtails.