Exo Terra Sub Stratum, Bioactive Volcanic Substrate for Reptile Terrariums, Eliminates Odor, Offers Correct Moisture Levels 8.8 lb
$29.98
Price: $29.98
(as of Oct 30, 2025 17:35:49 UTC – Details)
The Exo Terra Sub Stratum originates from the mineral-rich foothills of Japan’s Aso Volcano. This natural volcanic soil, comprised of andesitic and rhyolitic tephra, boasts abundant nutrients, perfect for nurturing vibrant plant life within bioactive planted terrariums. Its porous composition facilitates excellent drainage and aeration, fostering robust root development. The Sub Stratum’s crumbly, lightweight structure fosters a thriving community of beneficial nitrifying organisms, establishing a self-sustaining terrarium ecosystem. Its active biological processes efficiently decompose organic waste, ensuring the terrarium remains clean and conducive to health.
Product Dimensions : 9.45 x 2.76 x 14.17 inches; 8.82 Pounds
Item model number : PT3184
Date First Available : April 2, 2021
Manufacturer : Rolf C. Hagen (USA) Corp.
ASIN : B091L3QS9F
Best Sellers Rank: #54,159 in Pet Supplies (See Top 100 in Pet Supplies) #117 in Terrarium Substrate
Customer Reviews: 4.8 4.8 out of 5 stars 118 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Natural Bioactive Soil: Bioactive Volcanic Substrate offers a natural solution for terrariums, promoting a bioactive environment that supports plant and animal life
Promotes Cleanliness and Health: With its unique properties, this substrate helps maintain cleanliness and health within the terrarium, fostering a thriving ecosystem for your plants and pets
Ammonia and Odor Elimination: Bioactive Volcanic Substrate effectively eliminates ammonia and unpleasant odors, creating a more comfortable environment for terrarium inhabitants
Superb Drainage Capabilities: Featuring excellent drainage capabilities, this substrate prevents waterlogging and ensures proper moisture levels, essential for the well-being of plants and animals
Ideal for Planted Terrariums: Specifically designed for bioactive planted terrariums, Bioactive Volcanic Substrate provides the perfect foundation for lush vegetation and a diverse range of terrarium species
13 reviews for Exo Terra Sub Stratum, Bioactive Volcanic Substrate for Reptile Terrariums, Eliminates Odor, Offers Correct Moisture Levels 8.8 lb
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Michael McBride –
The stuff is awesome
We use this in our terrariums where we have a lot of water that we still want things to grow in, because we donât want a bunch of loose soil to permeate through the water, and we want green stuff to grow on top of it. This meets all the requirements
Emily –
Plants dig it
Anything I plant in this stratum Thrives!! Iâve done a couple moss terrariums with different substrates (spaghnum, clay, and stratum) trying to decide which one I liked most, and the answer is sub stratum! Everything greens up immediately, and it just becomes a healthier looking plant. Quick growth, I had a couple newly rooted cuttings that got knocked out of their planter and were very stressed and sad. I popped them in a cup with this stratum and a day later youâd never even know something happened to them! I was really worried about doing the moss bc I didn’t know what to expect, moss canât tolerate fertilizers and I know very little about âproperâ substrate for it. But itâs so so happy, could be due to the container as all 3 are potted a little different but I think the micronutrients or beneficial bacteria are doing their jobs, making my job much easier!!When I’m done with these other few terrariums and small guys Iâm gonna start bottom and top dressing all my plants with sub stratum, or using only this sub stratum for smaller pots. Itâs a very good price, compared to the name brand thatâs twice as much for the same amount. Thereâs also a listing for 4.4lbs for $2 more than this 8.8lb bag. I just came back to buy 3 more bags, not too much more expensive than.soil nowadays, and itâs far superior in almost every way.
Laural H. –
Substrate good stuff
Frogs happy
AZgirlofgrace –
Good product overall
Purchased for a terrarium table.Make sure to soak the pellets thoroughly or they dry out relatively quickly. (They do make a crackling sound when adequately damp.) Decent quantity for the price. Will stick to roots and can be messy.
Gð©· –
Mix with perlite for rooting plants
Itâs stratum, I mix with perlite to root some plants and it works great!
Amazon Customer –
My plants love it!!!
My plants love this stuff! Roots out the wazoo!! Iâve been using only stratum by itself but will mix with indoor potting soil and perlite to make my own mix to cut down on expenses. But this stuff is great!!!
Ellen Van Der Jagt –
My plants love this stuff!
This stuff is great for hydroponic plants! It really helps my plants start growing again because of the extra nutrition that is in this. I cut it with perlite and my plants are growing like crazy! Definitely recommend
AZK –
Plants love this stuff
I loveeeee this product. My plants are so much happier since switching substrates
Jiuli –
Ottimo, io lo uso come terriccio per piante e tutto prospera meravigliosamente
Charlotte –
Iâve used this product several times in bioactive vivariums for my reptiles but this was my first time buying from Amazon.It arrives bang on time, and was amazing quality – the same as if bought direct from the supplier. I used this also in my house plants in a potting mix for them too and it seems to keep my houseplants thriving as well!But pricey but definitely worth it I think
Paul Plappermurks –
Das Exo Terra Sub Stratum ist nicht einfach nur ein Bodengrund â es ist der Traum jedes Terrarien-Enthusiasten. Mit seiner bioaktiven Formel aus vulkanischem Material bringt es nicht nur eine gesunde Basis für deine Tiere und Pflanzen, sondern auch die perfekte Umgebung für ein langlebiges, selbstreinigendes Ãkosystem.Hauptmerkmale:Bioaktiv und natürlich: Der vulkanische Boden enthält lebende Nutzbakterien, die organische Abfälle zersetzen und das Terrarium sauber und gesund halten.Vielseitige Anwendung: Nutze es als alleiniges Substrat, Drainageschicht oder gemischt mit anderen Substraten â ganz nach den Bedürfnissen deines Terrariums.Geruchsneutralisierend: Die absorbierenden Eigenschaften der Vulkanasche eliminieren Ammoniak und Gerüche, was für ein angenehmes Terrarienklima sorgt.Optimale Drainage: Es leitet Wasser effektiv ab und verhindert die Bildung von anaeroben Zonen. Perfekt für Pflanzenwurzeln und eine gleichmäÃige Feuchtigkeitsverteilung.Anwendungsoptionen:Alleiniges Substrat:Ideal für minimalistische Setups.Aktiviert sich bei Kontakt mit Wasser und zersetzt organisches Material wie Futterreste und Ausscheidungen.Erneuerung empfohlen: alle 12 Monate.Drainageschicht:Kombiniert mit einer organischen Deckschicht (z. B. Exo Terra Plantation Soil) sorgt es für optimale Bioaktivität und Wassermanagement.Eine anorganische Schicht wie BioDrain kann die Drainage zusätzlich verbessern.Gemischt mit anderen Substraten:Bereichert den Boden mit wichtigen Mineralien wie Kalzium, Stickstoff und Kalium.Unterstützt die Luftzufuhr und das Wasserrückhaltevermögen für gesunde Pflanzenwurzeln.Zusätzliche Tipps:Verwende nur behandeltes Wasser, um Schwermetalle und Chlor zu entfernen (z. B. mit Aquatize).Ergänze das Terrarienwasser regelmäÃig mit biologischen Reinigungszusätzen wie Turtle Clean für noch effizientere Filterfähigkeiten.Fazit:Das Exo Terra Sub Stratum ist mehr als nur ein Terrarienboden â es ist ein bioaktives Kraftwerk, das Leben und Gesundheit in dein Terrarium bringt. Egal, ob du ein bepflanztes Setup, ein tropisches Regenwald-Terrarium oder ein minimalistisches Design bevorzugst, dieses Substrat macht den Unterschied. Für eine natürliche, nachhaltige und selbstreinigende Umgebung ist es die erste Wahl! ð±ð¾ð
Anonymous –
Exactly as expected. Works great for my plant propagation chambers.
kate –
Now has grown white furry mould and isn’t doing what on says on the packet. Have to keep mixing it around. Now worried it’ll cause respiratory problems for my royal.