Thorichthys meeki


Thorichthys meeki
Fire Mouth Cichlid
火口慈鲷
Firemouth cichlids (Thorichthys meeki) are native to Central America. They occur in rivers of the Yucatán Peninsula, Mexico, south through Belize and into northern Guatemala. Their natural habitat is typically shallow, slow-moving, often turbid, water with a pH of 6.5 - 8.5. It has also been reported to live in underground cave systems. As fish with a tropical distribution, firemouth cichlids live in warm water with a temperature range of 23–30 °C. The common name, firemouth, is derived from the bright orange-red colouration on the underside of the jaw. Males in particular flare out their gills, exposing their red throats, in a threat display designed to ward off male rivals from their territory. Like most cichlids, brood care is highly developed; this species is an egg-layer. Firemouth cichlids form monogamous pairs and spawn on flattened surfaces of rocks, leaves or submerged wood. Breeding males are primarily responsible for territorial defense, while females are more intensively involved in raising the fry, though both parents lead the fry in search of food. Firemouth cichlids are omnivorous and opportunistic in their feeding strategies. Sexual dimorphism is present, though limited in this species. Males are generally larger, (up to 16 cm), than females, have brighter and more red colouration around the throat, and have more pointed dorsal and anal fins. Firemouths are suitable for community aquaria, though they may become aggressive to other members of its species during spawning.

火口,原产北美洲的墨西哥、危地马拉。火口鱼属于慈鲷科鱼类,体色呈浅灰色,鱼体两侧有七条黑色竖条纹,生长成熟的火口鱼口部和鳃盖前部为鲜红色,因而得名。鳃盖后部有深绿色斑块,周围有艳蓝色斑块和条纹。眼眶绿色,在光线照射下闪闪发光。各鳍均为暗红色,布满浅蓝色条纹。火口鱼对水质要求不严格,喜欢中性水质环境,在18℃以上的水温中就能够良好地生长,是比较容易饲养的一种中型热带鱼。火口鱼不择食,但以摄食动物性饵料为主,并且食量较大。火口鱼性情比较暴躁,会吞食比自己体型小的其他鱼类,因而最好将火口鱼与体型相若、习性相近的鱼类一起混合饲养,千万不可将其与鲤科、脂鲤科等小型热带鱼共同饲养,以免发生意外。火口鱼经过10个月生长进入性成熟期,雌雄鉴别为:火口鱼雄鱼背鳍比雌鱼的尖而且长,鱼体比雌鱼稍大,体色也较艳丽;雌鱼背鳍较短,末端呈圆形,鱼体相对较小,但其腹部较膨胀,体色比雄鱼逊色。 


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