科: Lebiasinidae
红肚铅笔为鳉脂鲤科鱼类，和平但胆小，裸缸强光下易紧张，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 4.9–7.2 cm，群游性，8–10 尾以上体色与状态最佳，适宜水温 24–26 °C。群要大，光要柔。
Nannostomus beckfordi is a Lebiasinidae from 南美洲. Its colours are honest signalling: pale, scattered fish are telling you something is wrong. It lives on the bottom. Adults reach 4.9–7.2 cm. Shoaling; 8–10+ unlocks full colour and calm. Keep a proper school, dim the glare, and feed small foods several times a day. Maintain 24–26 °C at pH 6–8. A solid choice for a well-planned community tank.