Glassfishes occur in many fish families. In the hobby we know for example glass perches (Parambassis etc.) and glass catfishes (Kryptopterus); occasionally also glass gobies (Gobiopterus) and Crystal danios (Danionella) are kept in aquaria. All these fishes come from South and South East Asia. Now we were able to import from South America a species new for the hobby: the Mountain crystal tetra, Leptagoniates pi. We obtained the fish from Peru, the species was oringinally described from Bolivia. The fish attains a length of about 4 cm. Very characteristic and species-specific is the swim bladder, which is parted in two and has a connection on the top, thus forming a figure that reminds one to the ancient greece letter "Pi". This is why the species is named as it is.

Size 3cm

require a tank of at least 10 gallons. Maintain the water temperature between 72-80°F (22-27°C) with a pH level of 6.0-7.5. Provide them with a well-planted tank and moderate lighting. They are omnivorous, so feed them a varied diet of high-quality flakes, pellets, and small live or frozen foods. Keep them in groups of 6 or more for optimal social behavior. Regular water changes and monitoring of water parameters are important for their well-being.