Leopold's Tetra

About

Leopold's Tetra (Astyanax leopoldi) is one of those species you're more likely to stumble across by accident than to track down intentionally. It originates from the Approuague and Oyapock River basins in South America, where it tends to hang out in the calmer pockets along rapids. The kind of slack water that offers shelter without being completely still. In the wild it turns up in large groups, which tells you something important about how to keep it: a school of at least eight to ten individuals is really the minimum if you want to see natural behavior. A lone specimen or a small group will be noticeably more skittish and subdued. In terms of temperament, Leopold's Tetra is thoroughly peaceful and slots well into a community setup alongside other small characins, dwarf cichlids, and placid catfish like cories or smaller loricariids. Avoid pairing it with anything that could intimidate or bully it. The genus Astyanax is genuinely huge within the family Characidae, yet very few species make it into the hobby with any regularity, and this one is no exception. You're most likely to find it as an incidental arrival mixed into a wild-caught shipment rather than as a labeled, intentional import. When you do find it, it's an active, lively schooling fish worth picking up.