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Hyphessobrycon eques


Hyphessobrycon eques
Serpae Tetra
红旗灯
Serpae Tetra
红旗灯
Neon Serpae Tetra
电光红旗灯
Long Fin Serpae Tetra
长鳍红旗灯

Serpae tetras are one species of the genus Hyphessobrycon, now known as Hyphessobrycon eques. These South American tropical characids are popular aquarium fishes, often identified as "Red Minor tetras". They are found in nature in the Madeira and Guaporé regions of the Amazon river, and in upper Paraguay. Serpae tetras prefer water temperatures ranging from 22-26°C. They will generally do better and show off their best colors in soft, neutral to slightly acidic water. As with any other schooling fish, they thrive in large groups and should be kept in schools of at least 6-10 fish. The tank should be well-planted, which provides shelter and hiding spots.
They have a reputation of being fin-nippers although this is disputed. If any aggression is seen in the fish, it is usually amongst themselves rather than aimed at tankmates outside of their species, especially if they are kept in large groups where they can establish a pecking order (a behavior similar to Puntius tetrazona). Their typical temperament and striking appearance (red with a black diamond on the flank) makes them an excellent addition to the community aquarium.
扯旗鱼体格健壮,不择食,以动物性饵料为主,也较容易接收各种人工饵料。它们喜欢生活在弱酸性的水质环境中,喜群居,性格好动,活动于水域的中下层空间,它们习性温和,可以和大多数小型鱼类混合饲养,但它们也具有一个和鲤科虎皮鱼相同的恶习,就是有时会追咬那些游动缓慢、鱼鳍宽大的鱼类的鳍边。
扯旗鱼的雌雄鉴别:扯旗鱼7个月即可进入性成熟期,雄鱼体形较为纤细,体色艳丽,各鱼鳍都较雌鱼为长,尾鳍末端呈尖形;雌鱼体形略大于雄鱼,显得较粗壮,腹部也较为膨胀,体色黯淡显得单调,各鱼鳍较短,尾鳍末端呈圆形。
扯旗鱼的繁殖比较容易。先在繁殖缸底部铺设浓密的莫丝草或经过高温消毒过的棕丝。一切准备无误,将成鱼按雌雄1:1的比例放入其间,不久,雄鱼就会不停地追逐雌鱼,就这样在追逐中,雌鱼开始产卵,雄鱼同时授精,产卵数量大致在200-350左右,受精卵呈咖啡色,略带粘性,会沉入水底,附著于莫丝草或棕丝上,整个产卵过程需要数小时完成,结束后将成鱼捞出,以防吞噬鱼卵。受精卵约36小时后孵化,仔鱼还不会游动,在36小时内靠吸收自身卵黄素汲取养份所需,而后会自行游动,方可喂饲极其细小的活饵,例如:人工培养的草履虫。10天以后,仔鱼。即可接收普通的细小鱼食而不必再刻意照顾。
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