Fish and plant symbiotic device

A fish and plant symbiosis device comprises a fish tank assembly, a plant cultivation assembly and a water circulation assembly, the fish tank assembly and the plant cultivation assembly are connected through the water circulation assembly, water containing nitrogen salt in a fish tank is driven by the water circulation assembly to flow into the plant cultivation assembly, and water treated by plants flows back into the fish tank assembly through the water circulation assembly. Meanwhile, the content of nitrate in the fish tank is not too high, the living environment of aquarium fishes is guaranteed, meanwhile, nitrogen salt can provide nutrients needed by growth of plants, resource recycling is greatly improved, and sustainable development is achieved. 一种鱼植共生装置，包括鱼缸组件、植株养殖组件和水循环组件，鱼缸组件、植株养殖组件通过水循环组件连接，通过水循环组件驱动鱼缸内含氮盐的水流动至植株养殖组件内，经过植株处理后的水再通过水循环组件回流至鱼缸组件内，减少鱼缸换水次数，同时鱼缸内硝酸盐含量不会过高，保证观赏鱼的生存环境，同时氮盐可以为植株提供生长所需的养分，大大提高资源循环利用，实现可持续发展。