Try this one

  • We are currently upgrading MFK. thanks! -neo
i think,
males tend to be darker in color
 
but it is probably to small to tell
 
He/she is light sometimes and dark sometimes. Not sure if it is a true JD but i bought it at PetsMart and the tank said Green Terror and JD. here are some pic of my friends. he got em at the same petsmart but like 3 or 4 month b4 me.

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Looks like a baby JD to me. Its also too small to sex, I would think. As for darker colour...that really just depends on the fish. Darker substrate and surroundings will cause the fish to darked, as will mood swings and health.
 
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