The image shows a group of three fish swimming in an aquarium. The fish are of different sizes and colors, with the largest one in the center and two smaller ones on either side. The largest fish is a red bellied piranha, with a round body and a pointed snout. It has a yellowish-orange color with black spots on its body and fins. The other two fish are smaller and have a darker orange color. They are swimming close together, with their heads close together and their bodies facing towards the right side of the image. The background is dark, and there are rocks and plants visible in the background. The image is taken from a low angle, looking up at the fish.