Serpae Tetra or not?

no, there are two types of serpae tetra, the lighter, more golden body one is the more common Serpae.

the other is a slightly different species, or subspecies, i suppose.

i have five of the latter. I bought them as 'Hi Fin Serpaes,' but they definately are different fish. they are characterized by a darker red body and i taller dorsal (top) fin.

neat fish, probably my favorite tetra. theyre a little more aggressive than most tetras, in my experience.
 
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