Laboratory simulation observation device for fish in cave

The utility model provides a laboratory simulation observation device for cave fishes, which belongs to the technical field of aquatic animal observation devices and comprises an observation tank and a monitoring system, a water inlet pipe is arranged at one end of the observation tank, a water outlet pipe is arranged at the other end of the observation tank, filter screens are arranged near the water inlet pipe and the water outlet pipe, and a movable baffle is arranged in the middle of the observation tank. Sandy soil is laid at the bottom of the observation cylinder, cave columns are arranged in the sandy soil, cave holes of different sizes are formed in the cave columns, pressure sensors are arranged on the cave holes, pressure data are collected into a pressure analyzer through pressure data transmission lines, and the top and the two side faces of the observation cylinder are each provided with an automatic camera. Image data of the automatic camera is transmitted to the image analyzer through the image