# Sponge ZOOLOGIA Bio round 12/9 cm – ZOOLOGIA circular biological aquarium sponge 12×9 cm

**URL:** https://aio.lv/en/product--zoologia-vat005468--12063691
**Data updated:** 2026-03-12 21:42 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** ZOOLOGIA
**Manufacturer code:** VAT005468
**EAN:** 5907176447576
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zoologia-vat005468--12063691

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

ZOOLOGIA Bio round sponge (12/9 cm) is a circular aquarium filter sponge designed for biological filtration and mechanical debris capture. Its porous structure supports beneficial bacteria colonization while trapping particles from tank water. Suitable for freshwater and many marine setups, it can be used in internal filters, sponge filters, canisters with sponge inserts, and DIY filtration units.

## Long description

ZOOLOGIA Bio round sponge (12/9 cm) is a circular aquarium filter sponge designed for biological filtration and mechanical debris capture. The open-cell porous structure provides a stable surface for colonization of nitrifying bacteria while mechanically trapping suspended particles and detritus. The sponge is compatible with freshwater aquaria and many marine setups and is intended for use in internal filters, sponge filters, canisters with sponge inserts, and custom DIY filtration arrangements.
Advantages
The sponge combines biological and mechanical filtration in a single medium: its porosity supports beneficial bacterial communities responsible for ammonia and nitrite conversion, while the matrix captures uneaten food, waste and fine particulate matter. Its circular shape and uniform thickness make it easy to fit into round housings and sponge filter holders. The material is washable and reusable, maintaining performance after gentle cleaning. The product is chemically inert, does not release harmful substances into aquarium water, and preserves stable flow characteristics when correctly installed.
Suitable for
 Freshwater aquariums requiring biological filtration and particle removal
 Sponge filters used for fry tanks, shrimp tanks and breeding setups
 Internal filters and canister systems with sponge insert compartments
 DIY filtration projects and custom filter media trays
Key specifications
 Shape: circular
 Diameter: approximately 12 cm
 Thickness: approximately 9 cm
 Function: combined biological and mechanical filtration
 Material: open-cell foam suitable for bacterial colonization
 Compatibility: suitable for freshwater and many marine applications
 Serviceability: washable and reusable with recommended maintenance
How to use
Insert the sponge into the filter housing, sponge filter cup, canister sponge compartment or DIY media tray so that water flows evenly through the foam. For sponge filters, mount the sponge on the lift tube or place it around the airlift area to ensure continuous flow through the media. During initial use, rinse the sponge in dechlorinated water to remove any packing dust before installing. Observe flow direction and ensure the sponge does not block intakes; trim the sponge carefully if a small size adjustment is required.
Usage recommendations
For biological filtration stability, avoid cleaning the entire sponge at once; instead, rinse portions in aquarium water during regular maintenance to preserve beneficial bacteria. Clean the sponge by gently squeezing in a bucket of tank water until excess debris is released. Replace the sponge only when it shows irreversible degradation or when cleaning no longer restores acceptable flow.

## FAQ

### How much does the ZOOLOGIA Bio round sponge 12/9 cm cost, and is it available for purchase?

The price is 8.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 16.07.2026 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 ZOOLOGIA 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 ZOOLOGIA 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/12063691/67549039_large.webp