Glassfish are small, translucent freshwater fish that live in schools in Southeast Asian rivers and streams. Their bodies are nearly transparent, allowing a clear view of their internal organs and skeletal structure—a striking adaptation that serves as camouflage in open water. They rarely exceed 3 cm in length and prefer slow-moving, well-planted habitats where they feed on tiny insects and zooplankton. Often encountered in the aquarium trade, wild populations inhabit rivers from Thailand to Malaysia.
Most likely to be seen at
Sites where its range and habitat make it likely — not yet confirmed by a logged sighting.