科: Cyprinidae
极边扁咽齿鱼为鲤科鱼类，成年个体安静，幼鱼时期群游，原生分布于青藏高原水系。故乡的水来自融雪：凉爽、湍急、溶氧饱和。成体约 11.2–16.5 cm，建议长缸单养或小群，适宜水温 18–26 °C。降温比喂食更重要。
Platypharodon extremus, a member of the family Cyprinidae, comes from Tibetan Plateau waters, where it inhabits clear streams and rivers over gravel. Calm giants; anything swallowable is food and accepts most foods; give it greens as well as protein, it grows to 11.2–16.5 cm and adapts well to a properly set-up aquarium in the 18–26 °C range. In a community tank it pairs well with Cold-water catfish of similar bulk.
中等难度，稳定水质比高端设备更关键。Calm giants; anything swallowable is food，Singly or in small groups in long tanks。
保持 18–26 °C 并避免波动，pH 6.5–7.5、GH 5–15 dGH 即可。
成体约 11.2–16.5 cm；最小缸体 327 L，并留出活动空间。
Accepts most foods; give it greens as well as protein。每天两小餐比一顿大餐更利于状态。
Calm giants; anything swallowable is food；Singly or in small groups in long tanks。理想混养对象：Cold-water catfish of similar bulk — Share the cool, current-rich regime。需避开Small fish — Will be eaten。
分布于青藏高原水系：Clear streams and rivers over gravel，Moderate, well-oxygenated current。
换水与维护期间建议加盖，防止惊跳。
人工环境下：Spawning follows cold-season floods in nature; rarely in aquaria。Males often slimmer and more colourful。