科: Characidae
蓝线灯为脂鲤科鱼类，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 4.1–5.9 cm，群游性，8–10 尾以上体色与状态最佳，适宜水温 22–26 °C。群要大，光要柔。
Boehlkea fredcochui, 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 lives on the bottom. Adults reach 4.1–5.9 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 22–26 °C at pH 6–8. Best suited to a keeper who can match its natural water.