Volume: 110 L 水体容积：110 升
Dimensions: 70x40x40 cm 尺寸：70×40×40 厘米
List of fishes: Rutilus rutilus, Astacus astacus
鱼类名录：欧鲌（Rutilus rutilus）、欧洲螯虾（Astacus astacus）
List of plants: Ceratophyllum, Salix alba
植物列表：金鱼藻、白柳
Description of decorations: washed river sand of several fractions, leaves and roots of willow.
装饰描述：多种粒径的洗净河沙，以及柳叶和柳根。
Description of equipment: 15W LED lamp, mounted filter 600l / h, phytofiltration by rooted willow shoots.
设备描述：15 瓦 LED 灯，600 升/小时的上置过滤器，通过生根的柳枝进行植物过滤。
Water parameters: – 水质参数：–
Additional info: A distinctive feature of this aquarium is a two-level filtration using willow sprouts, which are located directly in the species tank and act as a decor. With regular feeding and a large number of shelters, crayfish do not attack fish. The presence of a large number of driftwood also contributes to maintaining a stable bio-balance, as plaque is formed on their surfaces in the form of algae and bacteria that contribute to the purification of water. Because of this, the water in the aquarium is constantly crystal clear. The aquarium in the photo is 3 months old. At the moment (12 months from the start), the aquarium continues to function in almost the same form, which proves the possibility of keeping crayfish with ordinary hydrobionts.
附加信息：该水族箱的独特之处在于采用两级过滤系统，利用直接置于主缸中并作为装饰的柳树嫩枝。在定期投喂且提供大量躲藏处的条件下，螯虾不会攻击鱼类。大量沉木的存在也有助于维持稳定的生物平衡，因为其表面会形成由藻类和细菌组成的附着层，这些微生物有助于净化水质。因此，水族箱中的水体始终清澈如晶。照片中的水族箱已运行 3 个月。截至目前（启动后 12 个月），该水族箱仍以几乎相同的形式持续运转，这证明了螯虾与普通水生生物共养的可能性。
INFORMATION ABOUT BIOTOPE
关于生物群落的信息
Description of the area surrounding the biotope: Along the river bank willows grow. Thanks to their roots, the coast is quite deep and safe from erosion. The sandy bottom is covered with fallen leaves of coastal trees. The roots of plants form many shelters for crayfish.
生物栖息地周边环境描述：河岸沿线生长着柳树。凭借其根系，河岸相当稳固，不易受到侵蚀。沙质河床覆盖着沿岸树木掉落的落叶。植物根系为螯虾形成了众多躲藏场所。
Description of the underwater landscape of the biotope: Of all aquatic vegetation, only hornwort is present.
生物栖息地水下景观描述：在所有水生植被中，仅存在金鱼藻。
Description of the parameters of the habitat: –
栖息地参数描述：–
List of fishes and invertebrates occurring in the nature biotope: Rutilus rutilus, Astacus astacus
自然生境中出现的鱼类和无脊椎动物名录：欧亚拟鲤（Rutilus rutilus）、欧洲螯虾（Astacus astacus）
List of plants found in the nature biotope: Ceratophyllum, Salix alba
自然生境中发现的植物名录：金鱼藻属（Ceratophyllum）、白柳（Salix alba）
Threats to the ecology: –
对生态的威胁：–
Sources of information: The aquarium is built on the basis of personal field observations of a real biotope.
信息来源：该水族箱基于对真实生境的实地个人观察而构建。
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