科: Cichlidae
蓝剑鲨为慈鲷科鱼类，有主见但空间充足时可控，原生分布于非洲坦噶尼喀湖。领域就是它的世界观；石头砌成的墙比开阔水面更能带来平静。成体约 8.2–12.1 cm，单养、成对或小后宫，切忌拥挤，适宜水温 23–25 °C。过滤要强，石头要堆。
Cyprichromis leptosoma, a member of the family Cichlidae, comes from Lake Tanganyika, Africa, where it inhabits lakes and slow rivers with structure. Assertive but manageable with space and structure and accepts all foods; emphasise quality over variety, it grows to 8.2–12.1 cm and adapts well to a properly set-up aquarium in the 23–25 °C range. In a community tank it pairs well with Other cichlids of similar size and temperament.
饲养难度：中等。Assertive but manageable with space and structure。
建议水温 23–25 °C，23–25 °C recorded range；Heater required for stable tropical warmth。
成体约 8.2–12.1 cm；最小缸体 176 L，并留出活动空间。
Accepts all foods; emphasise quality over variety。建议人工饲料搭配冷冻或活饵，保证多样性。
Assertive but manageable with space and structure；Singly, in pairs, or as a harem — never crowded。理想混养对象：Other cichlids of similar size and temperament — Balance aggression across the tank。需避开Delicate planted-tank species — Uprooted and outcompeted。
分布于非洲坦噶尼喀湖：Lakes and slow rivers with structure，Still to gentle current。
换水与维护期间建议加盖，防止惊跳。
Cave or substrate spawner with prolonged parental care。Often striking; males larger and brighter。