Terra Aranea Substrate for Tarantulas 18 qt bag

The Bio Dude's handcrafted Terra Aranea bioactive substrate for Tarantulas, Scorpions, Spiders, Vinegaroons and other invertebrates. Terra Aranea is a one-of-a-kind substrate that was thoroughly tested for over a year prior to its release in 2019. To learn more about what makes this substrate unique, read The Science Behind Terra Aranea.

Terra Aranea substrate is specifically designed for all biomes that can get very dry and arid or in a high humidity biome. This substrate is designed to hold the perfect amount of water while allowing for evaporation, preventing anaerobic bacteria growth — a common challenge when dealing with inverts and terrariums. When used in conjunction with the Bio Shot, it will not only help outcompete negative bacteria and mold, it encourages a fully self-cleaning, self-maintaining bioactive environment, while ensuring your invert gets the exact husbandry they need, without the worry of harmful molds and bacteria.

Terra Aranea also retains all burrows and hides. This substrate brings out many of the instinctual niches that invertebrates exhibit in their daily life. Not only does it hold a burrow, it also holds a complete tunnel when the moisture content is held at 25%–75%. Terra Aranea provides excellent organic nutrition for your vivarium by creating necessary air pockets for root development and plant health — also essential for springtails and isopods to establish a sustainable population.

Ready to set up your enclosure? Check out our step-by-step guide: How to Set Up a Terra Aranea Bioactive Terrarium.

Note: Each 18 qt bag of Terra Aranea weighs an average of 9 lbs.

There is no drainage layer needed for the Terra Aranea.

Tarantula & Invert Care Guides

• Mexican Red Knee Tarantula Caresheet & Bioactive Guide
• Arizona Blonde Tarantula Caresheet
• Chaco Golden Knee Tarantula Caresheet
• Curly Hair Tarantula Care & Maintenance
• Regal Jumping Spider Caresheet