An elevated view captures a concrete aquaculture tank in the city of Rido, Nigeria

An elevated view captures a concrete aquaculture tank in the city of Rido, Nigeria. The tank contains a volume of opaque, yellowish-green water. A large, dark-colored fish, consistent with a catfish, is partially visible at the water's surface in the midground, its back and dorsal fin area breaking the surface and creating ripples. Indistinct shapes suggestive of other large fish are discernible deeper within the murky water. The upper sections of the concrete tank walls are visible along the top and left edges of the frame, exhibiting a weathered, light gray texture with areas of darker discoloration near the waterline. No human individuals or their belongings are present in the scene. The lighting indicates daylight conditions.