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Black Morpho Tetra: A Comprehensive Guide (Poecilocharax weitzmani)
by Bob Steenfott March 15, 2026

The Black Morpho Tetra (Poecilocharax weitzmani) is a rare Amazonian characin known for its deep black body and shimmering blue highlights. Unlike most tetras, this species displays fascinating cave-spawning behavior in which the male guards the eggs inside a small shelter.

Posted in black morpho tetra, cave spawning tetra, nano predator fish, poecilocharax weitzmani, rare tetra species, steenfott aquatics fish library, unusual tetra species

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