科: Characidae
银牙灯为脂鲤科鱼类，性情温和，数量过少会神经质，原生分布于南美洲。体色是诚实的状态信号：发色差、分散就是在告诉你哪里不对。成体约 5.6–8.2 cm，群体紧密，切忌少于 6 尾，适宜水温 23–28 °C。群要大，光要柔。
Exodon paradoxus, a member of the family Characidae, is native to 南美洲. Its colours are honest signalling: pale, scattered fish are telling you something is wrong. It swims in mid-water. Adults reach 5.6–8.2 cm. Schools tightly; never keep below 6. Keep a proper school, dim the glare, and feed small foods several times a day. Maintain 23–28 °C at pH 5.5–7.5. Water quality and diet matter more than décor.