Description
Bioactive Volcanic Substrate
- Natural bioactive soil
- With live beneficial bacteria
- Keeps the terrarium clean & healthy
- Eliminates ammonia & odours
- Great drainage capabilities
- Ideal for bioactive planted terrariums
The Exo Terra Sub Stratum is collected from the mineral-rich foothills of the Aso Volcano in Japan. The natural volcanic soil, formed from andesitic and rhyolitic tephra, is very nutrient rich, ideal for lush plant growth in bioactive planted terrariums. The porous surface allows for excellent drainage and aeration, supporting strong root growth. The Sub Stratum’s friable, low density structure promotes a flourishing population of beneficial, nitrifying bacteria, creating a self-sustaining, living terrarium ecosystem. The active beneficial bacteria of the soil will decompose biological waste, keeping the terrarium clean and healthy.
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 1-2″ (2,5 – 5 cm) 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.
Ingredients: Natural Volcanic Soil (Andisol), Active Carbon, Live beneficial bacteria (Bacillus)
“Nothing is lost, everything is transformed” – Antoine de Lavoisier
Made in Japan
Whether you’re collecting from our store, ordering dry goods, arranging local delivery or having livestock delivered nationwide, we’ve made it simple to choose the right option.
Click & Collect
FREE COLLECTION FROM OUR STORE
Place your order online and select Click & Collect at checkout.
Livestock will normally be bagged when you arrive, helping to minimise the amount of time animals spend packaged. If you’d prefer your livestock to be ready beforehand, simply contact us in advance.
Local Delivery
DELIVERED BY TROPICAL SUPPLIES • WITHIN 25 MILES
Order from our in-store range and have it delivered directly to you using our own local delivery service.
Minimum order: £50
Local Delivery Charges:
Up to 5 miles — FREE
5–10 miles — £10
10–15 miles — £15
15–20 miles — £20
20–25 miles — £25
Distances are measured “as the crow flies” rather than by road.
Once your order has been placed, we’ll contact you to arrange a suitable delivery date and time. We often combine nearby orders into efficient delivery runs, so local delivery may take a little longer during busy periods.
Ordering a large aquarium?
Please make sure someone is available to help unload the aquarium from our van when we arrive.
Dry Goods Delivery
DX Express
0–75kg • Usually 1 working day
Orders placed before 12 noon may be dispatched the same day on our current dispatch days.
Express Pallet
75–500kg • Usually 1–3 working days
Designed for larger and heavier orders that cannot be sent using our standard parcel service.
Please note: We currently dispatch parcels Wednesday to Friday.
Adding Something to an Existing Order?
If your original order hasn’t been dispatched yet, simply place the additional items as a Click & Collect order and leave us a note asking us to combine them with your existing order.
Available to Order
See something you want that we don’t currently have on the shelf? Many of our products can be quickly sourced from our suppliers.
Products marked Available to Order are not currently held in stock at our store but are available for us to order on your behalf.
Most items arrive with us within a few days and usually no longer than a week, depending on supplier availability.
Once your item arrives with us, we’ll either dispatch your order or let you know it’s ready for collection, depending on the delivery option you selected.
After receiving your order, we’ll check availability with our supplier. If there are any issues or expected delays, we’ll contact you to let you know.
Nationwide Livestock Delivery
Have your new livestock delivered safely to your door using our specialist livestock delivery service.
Minimum livestock order: £50
Thursday Delivery — £24
Order by: Wednesday, 12 noon
Dispatched: Wednesday afternoon
Delivered: Thursday before 1pm
Friday Delivery — £24
Order by: Thursday, 12 noon
Dispatched: Thursday afternoon
Delivered: Friday before 1pm
Saturday Delivery — £29
Order by: Friday, 12 noon
Dispatched: Friday afternoon
Delivered: Saturday before 1pm
Add Dry Goods to Your Livestock Order
You can include dry goods with your livestock delivery, making it easy to top up food, treatments, equipment and other supplies at the same time.
Please note: Frozen food cannot be shipped with livestock and must be ordered separately.
Already Placed Your Order?
No problem. If your livestock order hasn’t been dispatched yet, place another order using Click & Collect and leave us a note asking us to combine it with your existing order.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.