Glowlight Tetras

The female is fatter and rounder than the male, the male is smaller and slender looking.
 
Females are usually larger and have a fatter body than the males, but until they are fully grown it may be hard to tell.
 
ive found over a period of time the males start to get small and slimmer and the females fatter and bigger but only found this out over a period of 5 months or so as i think my glow lights were young when i got them.hope this helps.

edit:il have to learn to type faster lol
 
ok, you should be able to tell them apart through looking at them then.
 
You can usually sex most tetra's like this the female is always bigger than the male.
 

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