Features: Safe and ecofriendly: Our fishtanks dividers use great grade plastic, ensuring its safe for both freshwater and saltwater aquariums. It has minimal impact on the environment. Customizable and versatile: The modular design allows easy assembly to fit various aquariumsize. Create separate compartments or DIY filtration system effortlessly. Improved water circulation: The unique design of our tray promotes efficient waterflows, maintainingoptimal conditions for your aquaticpets through effective filtration. Effective isolation and protection: Use the tray to isolate fish species or provide a safespace for injured or aggressive fish, ensuring peaceful coexistences. Multipurpose accessory: In addition to dividing the fishtank, our tray enhances the aquariums aesthetic as a base lining material. Its also useful for fish breeding and decoration. Specifications: Product Dimension: Approx. Multiple size 30x15cm/11.81x5.91inch, 30x30cm/11.81x11.81inch Material: Plastic Style Option: BlackColor(30x15cm)/BlackColor(30x30cm)/White(30x15cm)/White(30x30cm) Quantity: 6pieces/set Package Includes: 1 Set Aquariums Filter Dividers(6pieces) note: Please allow 1~2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.