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Nimbochromis polystigma


Nimbochromis polystigma
Hyena Cichlid
多斑点鲷
Nimbochromis polystigma is one of five species of the Nimbochromis genus of Lake Malawi, in the Great Rift Valley system of Africa. Usually, it includes the dubious "species" N. maculimanus and N. pardalis. Some authors include N. polystigma in N. linni as a subspecies. Occurring throughout the lake, Nimbochromis polystigma is a piscivorous fish, often preying upon juvenile cichlids. The local name for the fish is Kaligono, meaning 'sleeper' in the chiCheŵa language. It shares this name with other Nimbochromis species due to their hunting technique, which involves lying motionless on the bottom, sometimes on its side as if feigning death, until small fish approach to investigate, then pouncing on the prey. When hunting this way their colour will fade, apparently as the whiter colour attracts more small cichlids. They will also sometimes launch ambush attacks on small fish from the cover of vegetation, with their colouration acting as disruptive camouflage.
Like most Lake Malawi cichlids, Nimbochromis polystigma is a mouthbrooder, with the female carrying her young in her mouth for two to three weeks before being released.Nimbochromis polystigma is a relatively peaceful species, as long as its cohabitants are not small enough to be considered prey. It's an enthusiastic feeder, and will eat all of the usual foods given to cichlids, and has the rather endearing habit of leaping from the water to try to get at food or fingers.
In aquaria it can grow to 23 cm , and requires a large aquarium and can be kept with other haplochromines and most mbuna. It is best to have some rocks for them to hide in when threatened, but they also need room to swim.

它们生息在岩石比较多的地方的"等待型"的食鱼慈鲷。
这种鱼在习性上和外形上非常的相似花鯛(學名:Nimbochromis livingstoni)。多斑点鯛的游泳速度非常快,饲养他们需要非常大的鱼缸。喂饲料的时候,最好是用冷冻饲料比较好。因为这种饲料可以保持比较好的体形。如果一直用人工饲料的话,它会变非常的胖,而且不能保持美丽的身材。冷冻丰年虾、切成小块的鱼肉等都可以适量投喂。不同于一般的Nimbochromis属慈鲷,多斑点鯛有非常大的嘴。他们能够吞下各种能含到嘴里的东西,然后慢慢的咀嚼。雄鱼的领地意识非常的强。除了1000公升以上的非常大的鱼缸以外,如果在普通鱼缸里饲养的话,饲养者需要避免2条以上的同种雄鱼混养。否则强健的雄鱼一般会杀掉另外的雄鱼。平时他们并没有那么凶暴,但在发情的时候会凶性大发。在这一时期即便是2.8米的水族箱也不能算是大鱼缸!
它们是口孵型慈鲷。但是他们的成活率却很低。因为他们兄弟之间经常互相吞噬。所以如果饲养者如果想把他们全部养成大的话,需要多准备几个水族箱,然后按照成长程度、状态分开管理饲养。
这些Nimbochromis属的慈鲷为了繁殖需要,会挖出很多沙子来做交尾窝。雄鱼一旦觉得窝的尺寸、深度非常合适,他们就会开始不断的追逐雌鱼。如果雌鱼还没有发情的话,这种“不懈”的骚扰会使雌鱼感到很大的精神压力,也有可能会在躲避的时候碰撞岩石或其他造景而受伤。为了避免发生这样的情况最好是在水族箱里头多提供一些能够躲避的岩石洞穴或者多放几条雌鱼。
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