科: Cichlidae
尼氏短鲷为慈鲷科鱼类，领域性强，用造景遮挡视线可显著降低冲突，原生分布于南美洲亚马孙流域。聪明鱼，会重排造景、认得主人，也会惩罚光秃拥挤的缸。成体约 2.9–4.3 cm，一对占领一个领域，每对都要有可防守的洞穴，适宜水温 23–30 °C。过滤要强，石头要堆。
Apistogramma nijsseni is a Cichlidae from Amazon basin, South America. In the wild it prefers lakes and slow rivers with structure; in the aquarium it stays territorial. Plan on 2.9–4.3 cm of adult fish at 23–30 °C. Related profiles: Apistogramma cacatuoides, Apistogramma agassizii, Apistogramma borellii.
中等难度，稳定水质比高端设备更关键。Territorial; line-of-sight breaks keep the peace，A pair claims a territory; give each a defensible cave。
水温控制在 23–30 °C，重点是稳定。Heater required for stable tropical warmth。
成体 2.9–4.3 cm 左右，因其Bottom-dwelling的习性，25 L 以上的缸更合适。
Omnivore with a protein lean — quality cichlid pellets。建议人工饲料搭配冷冻或活饵，保证多样性。
Territorial; line-of-sight breaks keep the peace。推荐混养：Large robust catfish — Ignore the posturing below。避免与Small or timid fish — Bullied relentlessly同缸。
原生于南美洲亚马孙流域，栖息于Lakes and slow rivers with structure。Still to gentle current，Moderate。
无明显跳缸倾向，常规缸盖即可。
人工环境下：Dedicated pair-bonded spawner; expect fry defence。Often striking; males larger and brighter。