Bioscape Ebony Black Coarse 2-4mm Aquarium Substrate for Planted Tanks & Terrariums - Natural Decorative Gravel for Fish Tanks, Reptile Habitats & Landscaping Projects

The Bioscape Terra Base is a volcanic material that houses bacteria, allows drainage/water circulation, and has a mineral content. It is quite unique and can be used for the following.

• Beneath plant soil in an aquarium to aid in allowing water to penetrate the layers.
• Beneath more decorative gravel in an aquarium as above.
• As a base drainage layer in terrariums - adding mineral benefit as plant roots reach it.
• As part of a terrarium or reptile bio-active substrate "mix"  - often terrarium substrates are mixes of coco peat, soil, sphagnum moss etc... Terra Base is a great addition to keep the mix "open" and of course add some mineral content.
• Will not affect pH