48 x 18 in Terrarium Mesh Substrate Barrier, Cut-to-Fit | Cut-to-fit mesh separates substrate from a bioactive false bottom drainage layer for geckos, snakes, frogs and tarantulas

About this item

• CUT TO FIT ANY ENCLOSURE, ANY SIZE At 48"x18", this is the largest substrate barrier mesh on Amazon. Fits 75-gallon tanks straight out of the bag - or trim it with household scissors to 36x18, 24x18, 18x18, or any custom shape. No fraying, no tools, no waste. One sheet replaces two or three smaller pieces.
• THE MISSING LAYER IN YOUR BIOACTIVE SETUP Lay this drainage fabric directly above your LECA or hydroballs to create a clean separation between your false bottom and substrate. Soil, coco fiber, and ABG mix stay locked above. Water drains freely below. No substrate migration, no compacted drainage layers, no anaerobic pockets.
• REPTILE-SAFE, NON-TOXIC DRAINAGE FABRIC Made from natural, porous fabric that's safe for reptiles, amphibians, arachnids, and invertebrates. Strong enough to hold heavy substrate loads - ABG mix, topsoil blends, coco fiber - without sagging into your drainage layer. Cuts cleanly and holds its shape permanently.
• BUILT FOR EVERY BIOACTIVE KEEPER Compatible with Exo Terra, Zoo Med, PVC, and custom vivariums. Works as a substrate barrier for leopard geckos, crested geckos, ball pythons, corn snakes, dart frogs, whites tree frogs, tarantulas, and isopod colonies. The go-to drainage mesh for bioactive terrariums, paludariums, and vivarium builds.
• KEEPER-MADE IN WISCONSIN BY CTWPETS Every liner is hand-cut, inspected, and packed by reptile keepers who use these in their own builds. We make products for setups we actually run - then put them on Amazon. Backed by a 30-day satisfaction guarantee. If it doesn't work for your enclosure, we'll make it right.

Overview

• Product Dimensions ‏: ‎ 6 x 4 x 0.7 inches; 1 ounces
• Item model number ‏: ‎ LargeMesh
• Date First Available ‏: ‎ May 3, 2026
• Manufacturer ‏: ‎ CTWPets
• ASIN ‏: ‎ B0GZFLNRYH
• Best Sellers Rank: #89,157 in Pet Supplies (See Top 100 in Pet Supplies) #212 in Terrarium Substrate
• Customer Reviews: 5.0 5.0 out of 5 stars (2)