鱼缸容量：135 升
Dimensions of aquarium: 90x50x30
鱼缸尺寸：90x50x30 厘米
List of fishes: Gasterosteus aculeatus, Pseudorasbora parva
鱼类列表：三刺鱼（Gasterosteus aculeatus）、麦穗鱼（Pseudorasbora parva）
List of plants: N/A 植物列表：无
Description of Decorations and Substrate: Elements of decoration came from the river. Sand, mud, deadwood, roots and reeds
装饰与底质描述：装饰元素均取自河流，包括沙、泥、枯木、树根和芦苇。
Description of Equipment: Aquael Ultramax 1500, LED lighting 6500K 200w, DIY water cooler.
设备描述：Aquael Ultramax 1500 过滤器、6500K 200 瓦 LED 照明、自制水冷装置。
Water Parameters: Water temperature ranges from 10(January) to 21°C, hardness is 20dH and the pH is 7.5
水质参数：水温范围 10°C（1 月）至 21°C，硬度 20dH，pH 值 7.5。
Additional Info: Water change ones a week 20%, Reeds are changed every 6-8 months. In January, the water temperature drops to 10°C.
补充信息：每周换水 20%，芦苇每 6-8 个月更换一次。1 月水温降至 10°C。
Aquarium video: 水族箱视频：
https://we.tl/t-8X7vvGNfBq
Description of the Area Surrounding the Biotope: A river in the Lubelskie Voivodeship, a left tributary of the Bystrzyca River. The river is over 20 km long and ends its course near Lublin, affecting the marshy area to the Bystrzyca river. The described biotope is located on the outskirts of the city of Belżyce. It is a small source that supplies the river. The area around the biotope is covered with huge Populus, Alnus and Sambucus nigra. The shores are overgrown with reeds. The area is specific because it is located in a city, despite it is wild. They visit rare species of birds (Ardea alba, Ciconia ciconia, Alcedo atthis). The biotope is intensively shaped by beavers, we can find many fallen trees and branches there.
生物群落周边环境描述：该河流位于卢布林省，是比斯特日察河左岸支流，全长超过 20 公里，最终在卢布林附近汇入比斯特日察河，影响其周边沼泽区域。所述生物群落位于贝乌日采市郊，是一处为河流供水的小型源头。群落周边覆盖着高大的杨树、桤木和黑接骨木，河岸长满芦苇。该区域特殊之处在于虽地处城市却保留野生状态，常有珍稀鸟类（大白鹭、白鹳、普通翠鸟）到访。河狸对群落形态影响显著，可见大量倒伏树木和断枝。
Description of the Underwater Landscape of the Biotope: The source forms a small pond, its diameter is about 3 meters and the average depth is about 30 cm. The bottom is covered with silt, lots of branches, leaves, plant debris. Only in the place where the water comes out from under the ground do we see fine quartz sand, small limestone pebbles and pieces of shells. There are also plants, but the place is very shaded and they do not grow abundantly there.
水下景观描述：泉源形成一个小池塘，直径约 3 米，平均深度约 30 厘米。底部覆盖着淤泥、大量树枝、落叶和植物残骸。只有在地下水涌出的地方，才能看到细石英砂、小石灰岩卵石和贝壳碎片。这里也有植物生长，但由于环境非常荫蔽，植物并不繁茂。
Description of the Habitat Parameters: Crystal water with low and constant temperature flows from the ground. pH 7,8, ppm 321, temp. in winter is 9-10° C, uS – 656.
栖息地参数描述：清澈且温度恒定的低温地下水从地下涌出。pH 值 7.8，ppm 321，冬季水温 9-10°C，电导率 656 微西门子。
List of Fishes and Invertebrates Occurring in the Nature Biotope: Gasterosteus aculeatus, Pseudorasbora parva, Gobio gobio, Perca fluviatilis, Salmo trutta, Thymallus thymallus, Rutilus rutilus.
自然生物群落中出现的鱼类与无脊椎动物列表：三刺鱼、麦穗鱼、鮈鱼、河鲈、褐鳟、茴鱼、欧亚拟鲤。
List of Plants Found in the Nature Biotope: Callitriche palustris, veronica sp.
自然栖息地发现的植物清单：沼生水马齿、婆婆纳属植物。
Threats to the Ecology of the Biotope: The river was severely polluted in the 1980s and 1990s, leading to the complete extinction of Astacus astacus and Pseudanodonta complanata. Unfortunately, all the time Krezniczanka is exposed to the negative impact caused by humans, littering or flushed fertilizers from nearby fields negatively affect this small ecosystem.
生态威胁：该河流在 20 世纪 80 至 90 年代遭受严重污染，导致欧洲螯虾和扁蚌完全灭绝。不幸的是，克热尼昌卡河始终面临人类活动的负面影响，垃圾倾倒以及附近农田冲刷的化肥持续破坏着这个脆弱的生态系统。
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