Exo Terra Bio Drain Substrate 2kg Aqua Zonic / Ocean Free which rapidly colonize the vast

which rapidly colonize the vast porous surface

The clear cap on the pellet chamber allows close monitoring of the available pellets

Each one is lined with a foam insert for effective mechanical pre-filtering

Does disc diameter affect capacity

Exo Terra Bio Drain Substrate 2kg Aqua Zonic / Ocean Free which rapidly colonize the vastExo Terra BioDrain Terrarium Draining Substrate is a natural, non organic substrate that allows excellent drainage of the terrarium. It will not rot or decompose like other natural substrates. The optional BioDrain Terrarium Draining Mesh will keep the BioDrain Terrarium Draining Substrate separated from the decorative terrarium top layer substrate and prevent the different substrates from mixing and contaminating the water. The BioDrain Terrarium