# Filter Media AquaNatura Nano Bacteria House Square L 155×35 mm, pack of 20

**URL:** https://aio.lv/en/product--aquanatura-tn-45105--12253852
**Data updated:** 2026-04-14 22:27 (EEST)
**Category:** Aquarium Supplies
**Manufacturer:** AquaNatura
**Manufacturer code:** TN-45105
**EAN:** 5904479451057
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--aquanatura-tn-45105--12253852

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

AquaNatura Nano Bacteria House Square L is filter media for aquarium filtration, sized 155×35 mm and supplied as 20 pieces per pack. Designed to provide surface area for beneficial bacterial colonization, it supports biological filtration in freshwater and marine systems. Use in canister, hang-on or custom filter setups to improve water quality and reduce ammonia and nitrite.

## Long description

AquaNatura Nano Bacteria House Square L is a pack of 20 modular filter media pieces sized 155 × 35 mm, designed to increase the colonizable surface area inside aquarium filtration systems. Made for use in canister filters, hang-on filters or custom filter housings, these square-profile media promote biological filtration by providing a stable substrate for nitrifying and denitrifying bacteria. They are suitable for both freshwater and marine aquaria where improved conversion of ammonia and nitrite to less harmful compounds is required.
Advantages
The Nano Bacteria House Square L offers consistent, repeatable geometry that maximizes surface area while maintaining good water flow through and around each module. Supplied as a set of 20 identical pieces, the media are easy to position and stack in multiple filter types, helping to maintain stable biological filtration over time. Their size and shape enable even distribution of bacteria and minimize dead zones, supporting reliable water quality management.
Suitable for
 Canister filters in small to medium aquaria
 Hang-on-back filters and external filter modules
 Custom filter boxes, sump chambers and DIY filtration rigs
 Freshwater and marine systems requiring biological filtration
When it may not be suitable
This media is primarily intended as biological support and does not provide mechanical or chemical filtration on its own; coarse mechanical prefiltration is recommended to prevent clogging. For very large aquaria or systems with extremely high bioload, additional or larger volumes of biological media may be required. If precise chemical control (e.g., phosphate removal, activated carbon polishing) is needed, complementary media should be used alongside these modules.
Key specifications
 Quantity: 20 pieces per pack
 Individual module size: approximately 155 × 35 mm
 Shape: square-profile modular pieces designed for stacking and packing
 Intended function: biological filtration substrate to promote beneficial bacterial colonization
 Compatible water types: freshwater and marine
How to use
Rinse each piece briefly with aquarium water before first use to remove any loose particles from manufacturing. Place the media in the biological chamber of a canister, hang-on, sump or custom filter so that water flows through and around the modules. Arrange pieces to allow uniform flow and avoid tightly packed areas that could restrict circulation. Monitor ammonia and nitrite levels during the initial weeks after installation to confirm establishment of the bacterial colony; cycling may take several days to weeks depending on system conditions.
What to consider before purchase
 Verify available space in your filter unit to accommodate 155 × 35 mm modules
 Plan for mechanical prefiltration to reduce particulate load on the biological media
 Determine required quantity of biological media based on aquarium volume and stocking levels
 Consider combining with chemical media if adsorption or polishing is required
Usage recommendations
For stable biological performance, replace or clean mechanical prefilters regularly and avoid replacing all biological media at once. When supplementing existing media, add new pieces gradually to maintain established bacterial colonies while increasing overall surface area.

## FAQ

### How much does the AquaNatura Nano Bacteria House Square L 155×35 mm cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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 30.07.2026 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 AquaNatura 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 AquaNatura 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