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Caridina multidentata


Caridina multidentata
Amano Shrimp
大和藻虾
Caridina multidentata is a species of shrimp found in Japan and parts of Korea and Taiwan. It has a translucent body covered with reddish brown points of ± 0.3 mm on their sides which may look like a broken line of reddish colour. The dorsal surface has a white stripe that runs from the head to the tail and the eyes are black. Females are easily distinguished from males from the more elongated lower row of dots lining the body. According to different sources, Caridina multidentata was introduced into the world of aquaria by Takashi Amano in the early 1980s. They are usually used in an aquarium because they feed primarily on algae, thus cleaning the aquarium if in large numbers. Caridina multidentata was previously known to aquarists as Caridina japonica but was renamed Caridina multidentata following a study in 2006

大和藻虾,从名字就知道它产自日本,在我国的台湾也有分布。大和藻虾最大体长可达5厘米,但我还真没有见过。最适合的水温在22~26摄氏度之间,水质要求PH值6.5~7.2之间。
在众多观赏虾中,大和藻虾并不太惹人注目,市场价格也偏低,和樱桃虾一样,属于初学养虾者的首选品种。大和藻虾通体透明,全身遍布红色斑点,仔细观察它还是非常漂亮的。
它的名字已经将它定性为食藻虾。一般而言,大和藻虾除了觅食藻类外,也进食浮游生物、饲料碎片甚至水草。大和藻虾食欲相当旺盛,一天中不停地进食,当食物不足时,容易由于营养不良引发疾病造成死亡。这时,大和藻虾可能转而摄食水草的嫩叶或腐叶。曾经有过大和藻虾大量进食自然界河内水草,危害本土生物的纪录。所以,在寄希望它清除的藻类的同时,也要兼顾投放一些饲料,以维持它正常的生活状态。
大和藻虾的雄雌相对容易分辨,身体上红色斑点规则的呈线条状排列的为雌虾,相反不规则的则为雄虾。大和泽虾由于属于汽水虾,在自然界中幼虾脱壳后随着水流到达近海洋的盐水水域。因而,任何在淡水中繁殖的尝试都只能以失败告终。
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