# Sponge filter insert ZOOLOGIA GĄBKA KWADRAT 12.5/9 for aquarium filtration media

**URL:** https://aio.lv/en/product--zoologia-vat005476--12294387
**Data updated:** 2026-04-26 18:48 (EEST)
**Category:** Aquarium Supplies
**Manufacturer:** ZOOLOGIA
**Manufacturer code:** VAT005476
**EAN:** 5907176447217
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 5.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zoologia-vat005476--12294387

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

ZOOLOGIA GĄBKA KWADRAT 12.5/9 is a square aquarium sponge designed as a filtration media for mechanical and biological cleaning. Made for placement in filters or as a replaceable insert, it captures debris, supports beneficial bacteria colonization, and helps maintain water clarity. Suitable for freshwater and planted tanks requiring routine media replacement.

## Long description

ZOOLOGIA GĄBKA KWADRAT 12.5/9 is a square aquarium sponge designed as a filtration media for both mechanical and biological cleaning. The sponge fits into compatible filter housings or can be used as a replaceable insert. Its porous structure traps suspended particles while providing surface area for beneficial bacteria to colonize, contributing to clearer water and more stable aquarium conditions in freshwater and planted tanks.
Advantages
The sponge combines physical debris removal with a porous matrix that supports nitrifying bacteria, helping to reduce ammonia and nitrite levels. It is easy to install and replace, washable for interim maintenance, and made to match common square insert dimensions for reliable fit. The neutral material does not release harmful substances into aquarium water and is suitable for routine media exchange schedules.
Suitable for
Freshwater aquariums
Planted tanks where gentle filtration is needed
Internal and modular filters that accept square sponge inserts
Setups requiring regular replacement of mechanical/biological media
When it may not be suitable
This sponge is intended for mechanical and biological filtration in freshwater systems and may not perform as intended in marine or heavily salt-laden environments. For very large aquariums with high bioload, a single sponge insert may be insufficient; additional or higher-capacity filtration media should be used.
Key specifications
Shape: square insert
Primary function: mechanical and biological filtration
Material: aquarium-safe porous foam
Typical use: replaceable filter media for routine maintenance
Recommended aquaria: freshwater and planted tanks
How to use
Rinse the sponge briefly in dechlorinated water before first use to remove any loose particles. Insert the sponge into the filter compartment designed for square media, ensuring a snug fit without compressing the foam excessively. Perform regular maintenance by rinsing the sponge in tank water during water changes to preserve beneficial bacteria; replace the sponge according to your maintenance schedule or when flow becomes restricted or cleaning no longer restores performance.
What to consider before purchase
Verify the filter chamber accepts a square insert of similar dimensions.
Assess aquarium bioload to determine if additional filtration is needed.
Consider replacement frequency based on tank conditions and maintenance routine.
Usage recommendations
For best results, alternate cleaning and replacement to maintain biological filtration: rinse the sponge in tank water during regular maintenance and replace it periodically rather than cleaning it to the point of removing most bacterial colonies. Combine with mechanical pre-filtration or additional bio-media in high-bio-load systems.

## FAQ

### How much does the ZOOLOGIA GĄBKA KWADRAT 12.5/9 sponge filter insert cost, and is it available for purchase?

The price is 6.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 14.07.2026 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/12294387/68215414_large.webp