# Aquarium substrate Fluval Bio-Stratum 8 kg — porous mineral substrate for planted tanks

**URL:** https://aio.lv/en/product--fluval-fv-6984--12068412
**Data updated:** 2026-03-12 21:47 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Fluval
**Manufacturer code:** FV-6984
**EAN:** 015561126984
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 65.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 54.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fluval-fv-6984--12068412

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Fluval Bio-Stratum 8 kg is a porous mineral aquarium substrate designed for planted tanks. The product supports root growth and nutrient exchange, improves water circulation within the substrate, and provides a stable base for aquatic plants. Suitable for freshwater planted aquariums and aquascaping projects where mineral-based substrate is preferred.

## Long description

Fluval Bio-Stratum 8 kg is a porous mineral substrate formulated for freshwater planted aquariums. The granulated mineral composition creates a stable base that supports root anchorage, encourages healthy root development and enhances water circulation through the substrate layer. Designed for aquascaping and planted tanks where a mineral-based medium is preferred, this substrate helps maintain conditions that support aquatic plants without adding fertilizers directly to the water column.
Advantages
Bio-Stratum's porous structure allows for efficient exchange of gases and nutrients around plant roots while helping maintain substrate permeability. The uniform granule size provides consistent support for rooting plants and reduces compacting over time. As a mineral substrate, it integrates well into aquascapes where natural-looking substrate and compatibility with root-feeding plants are important. The product is supplied in an 8 kg pack suitable for establishing a planted tank base layer.
Suitable for
 Freshwater planted aquariums and aquascapes
 Root-feeding aquatic plants and carpeting species
 Creating a porous base layer to improve substrate circulation
 Users preferring mineral-based substrates over soil or peat
Key specifications
 Form: porous mineral granules designed for aquarium use
 Pack weight: 8 kg
 Intended use: freshwater planted tanks and aquascapes
 Physical property: porous structure to enhance water and gas exchange
 Functional benefit: supports root anchorage and nutrient interaction at the root zone
How to use
Rinse the substrate briefly with dechlorinated water if desired to remove fine dust, then spread an even layer over the aquarium bottom to the depth required by your planting scheme. Place larger plants with established root systems deeper into the substrate and arrange mid- and foreground plants according to your aquascape plan. When filling the aquarium, pour water gently to avoid disturbing the substrate layer. Combine with suitable root tab fertilizers or liquid nutrients as needed to meet plant requirements, while monitoring water parameters after setup.
Usage recommendations
For best results, use Bio-Stratum as the base layer beneath a thin cap of finer substrate or sand if a specific aesthetic is desired. Monitor plant growth and supplement nutrients with root tabs for heavy root feeders. Avoid mixing with fine silt in the initial setup to maintain permeability; periodic gentle vacuuming of the top layer is sufficient to remove accumulated detritus without compacting the substrate.

## FAQ

### How much does the Fluval Bio-Stratum 8 kg aquarium substrate cost, and is it available for purchase?

The price is 65.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Fluval products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Fluval service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12068412/67553364_large.webp