Lava Rock

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Lava rock is a porous volcanic stone used to add structure and airflow to terrarium builds. Its rough, lightweight form creates space between particles, allowing excess water to pa ss through while supporting layers above it. Lava rock is commonly used as a base layer or structural element in both open and closed terrariums, helping prevent compacted soil and stagnant moisture. Natural variation in size and texture gives each build a more organic foundation. Show more