Question
In my aquarium are some Neon tetra.
(source: wikipedia)
I'd like them to breed, but I don't know if they can because I can't determine their genders.
After careful observation, I can identify some females (they have a larger belly). Are there characteristics to help me tell which is which?
Answer
Other characteristics
The male is slender and the blue line is straighter while The female is rounder producing a bent blue line.
Mostly, the males are bigger than females
Also see : How to Tell If a Neon Tetra Is a Male or Female?
Answered By - user34