Home›Where they come from›CoximRiverCoximOne profile names the Coxim. That is what has been written, not what lives there.Species1Families1Photographed1 of 1Difficulty rated1 of 1BasinParana basinAlso in the Parana basinParaguaySepotubaThat fish is also recorded fromGuaporéIténezParaíba do SulTaquariRuns throughBrazilHyphessobrycon herbertaxelrodiBlack Neon TetraCharacidae · Géry, 1961Max length35mm SL1.4in SLTank80 × 30cm31 × 12inTemp20–28°C68–82°FpH5.0–7.5This species has been a ubiquitous aquarium fish since its discovery, and is produced on a commercial basis in several countries, therefore wild fish are no longer collected. An ornamental albino form is sometimes available. Apart from its distinctive colour pattern, it can be identified from related species via the following combination of charac...Easy