




Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.
🌿 Elevate your terrarium game with volcanic vitality — because your reptiles deserve the best habitat!
Exo Terra Sub Stratum is a premium 4.4 lb bioactive volcanic substrate sourced from Japan’s Aso Volcano. Its porous, nutrient-rich composition promotes excellent drainage, moisture retention, and supports beneficial microorganisms that naturally eliminate odors and waste. Ideal for planted reptile terrariums, it fosters a clean, healthy, and visually stunning environment that enhances the well-being of both plants and reptiles.












| ASIN | B091L3FS7X |
| Additional Features | Drainage Hole |
| Best Sellers Rank | #67,162 in Pet Supplies ( See Top 100 in Pet Supplies ) #159 in Terrarium Substrate |
| Brand | Exo Terra |
| Brand Name | Exo Terra |
| Color | Brown |
| Customer Reviews | 4.7 out of 5 stars 224 Reviews |
| Included Components | All items listed in description. |
| Item Type Name | Reptile Terrarium Substrate |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer Part Number | PT3183 |
| Material | Natural volcanic soil (Andisol) |
| Material Type | Natural volcanic soil (Andisol) |
| Model Number | PT3183 |
| Set Name | EXO TERRA Bioactive Substratum Volcanic Substrate Set |
| Special Feature | Drainage Hole |
| Specific Uses For Product | Indoor |
| UPC | 015561231961 015561231831 |
| Unit Count | 70.5 Ounce |
| Vivarium Type | Terrarium |
K**L
very good
The Exo Terra Sub Stratum is an excellent choice for reptile enthusiasts looking to create a natural and enriched habitat for their terrarium inhabitants. With its bioactive composition, moisture-retention properties, and support for plant growth, this substrate enhances the well-being of reptiles while adding visual appeal to the terrarium. Although it may be slightly more expensive, the benefits it provides make it a worthwhile investment for serious reptile keepers. Rating: 4.7/5 Overall, I highly recommend the Exo Terra Sub Stratum for anyone seeking to create a thriving and visually stunning terrarium environment for their reptiles.
V**E
Used as plant substrate
Works great for rooting cuttings and rehabbing struggling plants!
A**R
Bioactive Drainage Substrate
This item is light weight and easy to use, allowing me to skip adding charcoal because the product already has a lot of benefiting nutrients inside for the plants. Perfect for bioactive setups and worth the money, a little goes a long way.
A**9
Great addition to biodiversity
When dealing micro fauna and small rare plants. This is a must! My isopods and small plants love this stuff. I use it whenever adding rich nutrients to my setups.
S**F
Great for enclosures and such!
Good product works perfect for enclosures with live plants and would defenitely recommend getting more than one bag for bigger enclosures!
E**Y
Great Price, Great Quality
My plants are so happy in this and it keeps my springtails hopping! Keep a bag of it on hand at all times now. Very clean as well. I am confident when using this product that I won’t contaminate with other biomaterials or some kind of harsh chemicals.
W**G
great rooting medium
This stuff has been great for rooting some of my more resistant cuttings. I have a woody umbrella plant that is always giving me trouble but this media has worked well so far to root cuttings. Everything else I drop in her roots perfectly, every time so far
A**R
Exo stratum
What I like about this product, stratum is a volcanic rock that is an excellent product when growing rare plant stems that is much better than placing rare plant stem in just soil or water reducing rot. I highly recommend this product to increase new plants from mother plant.
C**N
Bon
Parfait , pousse très bien, je mélange avec de la perlite
T**S
Todo ok
Todo ok
H**E
Sehr gutes Substrat !
Schnelle Lieferung und guter Preis ! Sehr gutes Substrat.
D**A
Soddisfatto
Buona alternativa ad un'altra marca dello stesso substrato
M**S
Substrat volcanique bioactif
j'ai acheter ce substrat suite au conseils de mon fleuriste pour une plante que j'ai acheter dans les iles canaris. je suis ravis du résultat, la plante et plus belle après 4 semaines. je conseil vivement.
Trustpilot
4 days ago
2 weeks ago