Horticultural Charcoal - Small - 1 GAL (RSC)

Premium Horticultural Charcoal. Free of chemicals and additives, often found in store-bought charcoal. Great addition to bioactive soils or as a soil

East Coast Garden Center

Josh’s Frogs Horticultural Charcoal is the second layer in the terrarium. It acts as a filter and keeps the terrarium fresh. Only a thin layer is needed to cover the drainage layer. The amount of charcoal needed will be half the amount of the drainage layer.

Josh's Frogs Horticultural Charcoal (1 quart)

Reliance 38 gal 4500 W Electric Water Heater - Ace Hardware

American Horticultural Society - The Fully Illustrated Plant-By

Horticultural Charcoal 101: Plant & Substrate Guide - Terrarium Tribe

Horticultural Charcoal 101: Plant & Substrate Guide - Terrarium Tribe

Processes, Free Full-Text

Horticultural Charcoal for Indoor Plants (1 Quart), Hardwood Soil

Biochar has been used in agriculture as a soil amendment for centuries. Its addition to soil can increase soil carbon, nutrient content, water retention, water-soluble nutrients, and beneficial microbial life. It is naturally derived from various plant materials such as hardwoods, grasses, and agricultural and forest residues decomposed at high temperatures. Harris biochar is made with 100% pure biochar with no fillers, additives, or colors whatsoever.

Harris Horticultural Charcoal, Premium Biochar Soil Amendment for Plants and Terrariums, 2qt