Hmmm......ok......Anyway, I'm very new with tetra. I'm currently keeping neon tetras (or what's left of them after the blood parrot attack! ). I know that male guppies have very nice colouring to it while the female guppies are usually larger and plain. So my question is, does this applies to neon tetra too??? How do I differentiate between the males from the females? Or do both sexes have the nice striking blue line to it???