Hemobllo 20 Pcs Aquarium Undergravel Filter Board, Interlocking PVC Fish Tank Bottom Grid, Egg Crate Divider Isolation Tray for Aquascaping, Substrate & Water Filtration

• 20 Pcs Modular Value Pack: Includes 20 pieces of durable bottom filter boards. Each grid measures approximately 14.5 x 14.5 x 2.5 cm (5.7 x 5.7 x 0.98 inches). This generous quantity offers excellent value for money and allows you to cover the bottom of large aquariums effortlessly.
• Interlocking & Adjustable Design: Say goodbye to complicated setups! These filter trays feature an easy clip-together joint system for seamless extension. They are also flexible enough to be easily cut with wire cutters or heavy shears to fit any custom fish tank shape or size.
• Enhanced Water Circulation: When placed under gravel or sand, this filter grid creates a hidden water channel. It can be easily connected to an air pump, filter pump, or submersible water pump to promote healthy water flow, prevent anaerobic pockets, and maintain a crystal-clear environment for your aquatic pets.
• Safe & Resilient PVC Material: Crafted from premium, non-toxic PVC material that will not affect water chemistry or hurt your fish. It boasts enhanced toughness and excellent weight-bearing capacity, meaning it won't easily break or warp even under heavy substrates.
• Versatile Aquarium Accessory: Beyond undergravel filtration, these versatile grids are highly practical. Use them as fish tank dividers to isolate aggressive species or breed fish, as a protective base layer to prevent heavy aquascaping rocks from cracking the glass bottom, or even as coral frag racks in marine reef tanks.

Product description Description Are you looking for a fish tank bottom filter plate? Our PVC filter plate can meet your needs. The fish tank bottom filter plate can activate the bottom bed and prevent the deposition of undesirable substances. Features - Colour: Black. - Size: Approx. 15x15x2.7cm. - Material: PVC. - PVC Plastic - The aquarium bottom filter plate is made of PVC plastic, which is moderately soft and hard. The structure has been strictly designed and has good toughness. - Dimension Information - The length and width of each filter plate are 15cm, and the height under the bottom plate is 2.7cm, which makes it easier for you to observe the accumulation of mud under the bottom plate. - Easy to Use - The aquarium filter plate can be attached as will, or you can cut it so that it completely covers the entire bottom of the tank. - Does Not Affect Water Quality - The fish tank bottom filter plate is made of food-grade plastic, which will not affect water quality. - Wide Application - The bottom filter plate is suitable for all kinds of aquariums and fish tanks. It is a good fish tank accessory for breeding fish, sea fish and making fish tanks. Package Included 20 x Aquarium Bottom Filter Plates Directions keep clean