This plastic aquarium grid measures 59 x 59 cm and features 0.9 x 0.9 cm openings, making it ideal for a variety of aquarium applications. The grid panels can be connected like puzzle pieces to form larger sections, offering flexibility and customization. Perfect for dividing tank space, mounting corals, organizing filter media, or preventing fish from entering filter overflow areas. Made from durable, aquarium-safe plastic, it’s suitable for both freshwater and marine setups.