PVC mesh – for separating layers of the substrate

This mesh is for aquarists and jar-terrarium keepers who need to stop two substrate layers from mixing. It works as a barrier between a light or loose substrate and the layer below it, or between drainage material and the soil above it.

Why it matters

• Fine 1x1 mm mesh: the openings are small enough to hold back fine soil and particles while water still passes through.
• Does not block flow: water moves freely through the mesh, so drainage layers keep working as intended.
• Keeps lightweight substrates in place: light substrates such as bio-ground, JBL Aquabasis, Manado, Tetra Complete and Tetra Active tend to float up, and the mesh holds them in their layer.
• Easy to fit: the material is flexible and can be cut and bent to match the shape of the tank or jar.

Specifications

• Mesh size: 1x1 mm
• Material: PVC mesh
• Sold as: one strip, 10 cm x 100 cm
• Supplied from: a roll, so each purchased strip is cut from it
• Weight: 0.1 kg

What it works with

The mesh is suited to aquariums with a layered substrate and to jar terrariums that use drainage layers of expanded clay, river gravel or ceramsite, plus a soil layer and optionally activated carbon. Buy several strips to cover a larger base: for example, six strips give a piece of 60 cm x 100 cm.