Aug 1, 2012 #1 T Treyzz Aquarium Advice Apprentice Joined Jun 24, 2012 Messages 44 How can I tell if my neon tetra are male or female?
Aug 1, 2012 #2 bettaowner Aquarium Advice Addict Joined Jun 23, 2012 Messages 5,981 Location Hawaii Female neon tetras are plumper than males.
Aug 1, 2012 #3 Samzter Aquarium Advice Addict Joined Jun 7, 2012 Messages 3,625 Location West Sussex Yes what bettaowner said is true. The males are more slender then females.