Improved Drainage: Horticultural charcoal is highly porous, allowing for excellent water drainage in both potted plants and terrariums. Its structure helps prevent waterlogged soil, reducing the risk of root rot and other water-related issues. Odor and Toxin Absorption: Horticultural charcoal acts as a natural filter, effectively absorbing and neutralizing unpleasant odors and harmful toxins in the soil. This property is particularly beneficial for terrariums, where enclosed environments can trap and amplify odors. Prevents Fungal Growth: Charcoal has antifungal properties that inhibit the growth of harmful fungi in the soil. Adding horticultural charcoal to plant pots or terrarium substrates can help prevent the onset of fungal, such as damping-off, root rot, and fungal leaf spots.