Terry's Topshelf Bioactive Blend
4 lbs per bag
Terry’s Topshelf Bioactive Blend is a premium substrate mix crafted specifically for moisture-dependent tarantulas and other arachnids. Designed to mimic the natural conditions of their native habitats, this blend offers ideal moisture retention, structure, and breathability to support your animals' health and comfort.
Formulated with a balanced combination of peat moss, sandy loam, mushroom compost, redwood compost, sand, and vermiculite, this substrate provides excellent water-holding capacity while preventing compaction—essential for burrowing species. The inclusion of compost materials supports microbial life for those interested in lightly bioactive setups, while the inert components maintain stability and reduce the risk of mold. Whether used in display enclosures or breeding setups, Terry’s Topshelf Bioactive Blend offers a safe, consistent foundation tailored to the needs of moisture-loving tarantulas and arachnids.
Ingredients: Peat Moss, Sandy Loam, Mushroom Compost, Redwood Compost, Sand, Vermiculite
4 lbs per bag
Terry’s Topshelf Bioactive Blend is a premium substrate mix crafted specifically for moisture-dependent tarantulas and other arachnids. Designed to mimic the natural conditions of their native habitats, this blend offers ideal moisture retention, structure, and breathability to support your animals' health and comfort.
Formulated with a balanced combination of peat moss, sandy loam, mushroom compost, redwood compost, sand, and vermiculite, this substrate provides excellent water-holding capacity while preventing compaction—essential for burrowing species. The inclusion of compost materials supports microbial life for those interested in lightly bioactive setups, while the inert components maintain stability and reduce the risk of mold. Whether used in display enclosures or breeding setups, Terry’s Topshelf Bioactive Blend offers a safe, consistent foundation tailored to the needs of moisture-loving tarantulas and arachnids.
Ingredients: Peat Moss, Sandy Loam, Mushroom Compost, Redwood Compost, Sand, Vermiculite
4 lbs per bag
Terry’s Topshelf Bioactive Blend is a premium substrate mix crafted specifically for moisture-dependent tarantulas and other arachnids. Designed to mimic the natural conditions of their native habitats, this blend offers ideal moisture retention, structure, and breathability to support your animals' health and comfort.
Formulated with a balanced combination of peat moss, sandy loam, mushroom compost, redwood compost, sand, and vermiculite, this substrate provides excellent water-holding capacity while preventing compaction—essential for burrowing species. The inclusion of compost materials supports microbial life for those interested in lightly bioactive setups, while the inert components maintain stability and reduce the risk of mold. Whether used in display enclosures or breeding setups, Terry’s Topshelf Bioactive Blend offers a safe, consistent foundation tailored to the needs of moisture-loving tarantulas and arachnids.
Ingredients: Peat Moss, Sandy Loam, Mushroom Compost, Redwood Compost, Sand, Vermiculite
Getting Started with Bioactive?
Creating a bioactive enclosure is an excellent way to provide your reptile or arthropod with a naturalistic, self-sustaining habitat. By mimicking natural ecosystems, bioactive setups utilize living organisms to help manage waste, support plant growth and maintain overall enclosure health. For beginners, setting up a successful bioactive enclosure starts with choosing the right substrate tailored to the species’ environmental needs.
For moisture-dependent species such as many tarantulas and invertebrates, a substrate like Terry’s Topshelf Bioactive Blend provides ideal moisture retention, structure, and microbial support through a mix of peat moss, sandy loam, composts, sand, and vermiculite. For arid-dwelling species, Terry’s Arid Arachnid Blend includes calcium-bearing clay, which helps maintain substrate integrity and supports springtail populations in otherwise dry conditions. For enclosures focused on detritivores or overall decomposition, Royal Soil offers a rich blend of organic matter, composts, and wood pulp to promote a thriving biological soil environment.
Want to learn more? Check out our Bioactive for Beginners article.
