Adjustable width design: Our fish tank isolation board has a height of 11 inches and a width that can be adjusted according to the situation. The adjustable width of the 9.4 * 11 "isolation board is 9.69-11.42 inches, and the adjustable width of the 11.02 * 11.02" isolation board is 11.26-13 inches. The fully enclosed fixing plates on both sides ensure stable installation in your fish tank and are suitable for tanks of 10 gallons and above.(It is recommended to measure the width and height of the fish tank before purchasing to ensure compatibility.) Premium and Safe Material: Crafted from premium acrylic, this divider is non-toxic, highly durable, and resistant to corrosion. With a transparency of over 92%, it offers excellent visibility, enhancing the beauty of your aquarium. It provides a safe and long-lasting solution for separating fish in your tank. Multi-Scenario Fish Management* Ideal for isolating aggressive betta fish, quarantining sick fish, protecting fry, or separating species. Your all-in-one aquarium separator solution. Precision-drilled holes ensure optimal water flow while preventing fish crossover. The integrated bottom waste channel effectively prevents waste buildup for healthier aquatic environments. Easy Installation and Protection: Installation is straightforward. Just peel off the protective film, attach the side brackets with suction cups, and insert the divider. Each fish tank isolation board comes with protective film on both sides to prevent scratches during shipping, and the suction cups are individually packed for your convenience. Are you tired of dealing with fish that fight, are sick, or are of different sizes and species in your aquarium? Our fish tank divider is the perfect solution for you! Available in two sizes, 9.45inch×11.02inch and 11.02inch×11.02inch, this acrylic fish tank divider is designed to fit various tank sizes. The two-sided full-coverage fixing plates are adjustable in width, ensuring a snug fit in your aquarium. Crafted from premium acrylic, this divider is non-toxic, highly durable, and resistant to corrosion. With a transparency of over 92%, it offers excellent visibility, enhancing the beauty of your aquarium. The round holes on the acrylic board are smooth and even, allowing for unobstructed water flow. Installation is a breeze - simply peel off the protective film, attach the side brackets with suction cups, and insert the divider. Each isolation board comes with protective film on both sides to prevent scratches during transit, and the suction cups are individually packed. Make your aquarium a harmonious and healthy environment for your fish with our fish tank divider!