Red lava rock is a porous, lightweight volcanic stone with a rich reddish-brown color. It’s commonly used in terrariums, vivariums, and aquascapes for both its look and functionality.

In terrariums, red lava rock is great for:

• Drainage: Often used as a bottom layer to improve airflow and prevent root rot

• Structure: Its porous texture helps anchor plants and mosses

• Aesthetics: Adds a warm, earthy tone and natural, rugged texture

It’s also ideal for bioactive setups, as its surface encourages beneficial microbial growth. Whether used visibly in the landscape or hidden below as a drainage layer, it’s a versatile and practical choice.