n overhead view of an aquatic tank located in Rido, Nigeria

n overhead view of an aquatic tank located in Rido, Nigeria. The tank, rectangular and constructed from a light-colored material, contains clear water. Hundreds of small, dark-colored fish fry are actively swimming throughout the tank. A red circular drain or overflow outlet with a green center is present near the upper right corner. In the lower central portion, a dark, irregular object rests on a white circular base, surrounded by fish fry and some dark sediment. The upper edge of the tank is bordered by a light brown structure. A metallic pipe is visible in the lower right foreground, positioned external to the tank. No human subjects are present.