SKU: 35335439178

Exo Terra Sub Stratum - Bioactive Volcanic Substrate

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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

Exo Terra Sub Stratum - Bioactive Volcanic Substrate3 Ways to use Sub Stratum: As a sole substrate As a drainage layer Mixed in with other substrates Sole Substrate When Exo Terra's Sub Stratum is used as the sole substrate, add a layer of 2,5 5 cm (1 2 in) to the terrarium. The live bacteria will activate when the substrate comes in contact with water or waste. The organic matter such as left over food and animal waste will decompose over time. The absorbing properties of volcanic ash will eliminate

3 Ways to use Sub Stratum:

  • As a sole substrate
  • As a drainage layer
  • Mixed in with other substrates

Sole Substrate

When Exo Terra's Sub Stratum is used as the sole substrate, add a layer of 2,5 - 5 cm (1 - 2 in) to the terrarium. The live bacteria will activate when the substrate comes in contact with water or waste. The organic matter such as left over food and animal waste will decompose over time. The absorbing properties of volcanic ash will eliminate odours by trapping the decomposed materials. Rinse the Sub Stratum and replace partly every 12 months.

Drainage Layer 

Add a top layer of biological substrate to the Exo Terra's Sub Stratum layer for optimal bioactivity and drainage. Plants can be secured in the top layer (eg. Exo Terra's Plantation Soil) while their roots will thrive in the sub layer of Sub Stratum - resulting in optimal growth.

Additionally, an inorganic layer can be added first for even better drainage (Exo Terra's BioDrain) to allow excess water to flow through the substrate to avoid saturation and anaerobic bacteria to outcompete the beneficial bacteria in the Sub Stratum substrate. Use the BioDrain Mesh to separate the BioDrain layer from organic matter to penetrate the underlying layer.

Use a top layer of leaf litter to provide dry areas, shelter and dwelling surfaces for all organisms in the terrarium. In the meantime it will prevent evaporation of the underlying layers.

Mixed-in

The secret to growing healthy plants begins with the soil. Naturally, healthy soil contains living microorganisms — from bacteria to fungi, protozoa and arthropods. Together they form a choreographed exchange from the recycling of nutrients to the decomposition of organic materials.

By mixing the Sub Stratum with other organic substrates, you enrich any substrate with the required minerals like calcium, nitrogen, potassium and phosphorus. It also aids in the water retention capacity and provide adequate air supply to the roots.

Only use tap water treated with Aquatize (PT1979) in bioactive planted terrariums to remove heavy metals, chlorine, and chloramines.

The regular use of Turtle Clean (PT1998 or PT1999) to add extra beneficial organisms to the terrarium water will support the biological filtration capabilities.

Key Features :

  • Natural bioactive soil
  • With live beneficial bacteria
  • Keeps the terrarium clean & healthy
  • Eliminates ammonia & odours
  • Great drainage capabilities
  • Ideal for bioactive planted terrariums
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35335439178

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tsand
Fort Morgan, US
★★★★★ 3
Runs large for a slim fit
Color: Black 02, Size: Large
I followed the size guide and ended up with an item that was to large in all areas. It did not fit like a slim fit. The fabric is odd and does not feel great against the skin. I love the design. I really wish it would have worked.
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Reviewed in the United States on April 30, 2026
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ashley gavin
New York, US
★★★★★ 5
Prom 2026
Color: Blue 02, Size: Medium, Color: Blue 02, Size: Medium
Perfect fit true to size
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Reviewed in the United States on April 29, 2026
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Tiffany K.
Bozeman, US
★★★★★ 4
Not true to size but great quality.
Color: Black 02, Size: Medium
I bought a medium for my son who normally wears medium. It was extremely big. The quality and arm length was good.
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Reviewed in the United States on May 5, 2026
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Tammie
Battle Creek, US
★★★★★ 5
Nice suite
Color: Black&red, Size: Small, Color: Black&red, Size: Small
Delivery was on time. Suit fit perfect I bought it for my son 8th grade dance. It was worth the money and quality was good
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Reviewed in the United States on May 30, 2026
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leslie moore
Omaha, US
★★★★★ 5
Does run big
Color: Black 02, Size: Small, Color: Black 02, Size: Small
Very nice suit but it does run big and I had to get it tailored! I really should have purchased the Xtra small for him!
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Reviewed in the United States on May 10, 2026

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