This is a FC404045 rectangular extra-large aquarium. Its dimensions are 40cm x 40cm x 45cm. Although small, it has ample capacity and won't take up much space even if placed in the living room. The seamless, transparent design provides excellent visibility, allowing you to clearly see the fish and aquatic plants. The material is high-quality glass, which is durable and can be used for a long time. It's in good condition and there are no concerns about water leakage. It is being sold because it is no longer suitable for my current breeding environment. Please take this opportunity to get this great deal on a used aquarium.