# External Aquarium Filter AquaNatura TN-45196 250 l/h for 25 L Tanks with Bio Filter Roll and Skimmer

**URL:** https://aio.lv/en/product--aquanatura-tn-45196--12397922
**Data updated:** 2026-04-27 22:31 (EEST)
**Category:** Aquarium Supplies
**Manufacturer:** AquaNatura
**Manufacturer code:** TN-45196
**EAN:** 5904479451965
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.99 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 9.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--aquanatura-tn-45196--12397922

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

External aquarium filter AquaNatura TN-45196 provides 250 l/h flow and is designed for aquariums up to 25 L. Compact unit includes a bio filter roll for mechanical and biological filtration plus an integrated skimmer for surface debris removal. Suitable for small freshwater tanks, it supports water clarification, oxygenation and maintenance of healthy conditions for fish and plants.

## Long description

The AquaNatura External Aquarium Filter TN-45196 is a compact filtration unit engineered for small freshwater aquariums up to 25 litres. The pump delivers a nominal flow rate of 250 l/h and the body integrates a replaceable bio filter roll that provides mechanical and biological filtration. An integrated surface skimmer collects floating debris and film to improve gas exchange and water clarity. The design focuses on space efficiency and straightforward maintenance for desktop or small home aquariums.
Advantages
The unit combines mechanical filtration via a bio filter roll with biological filtration in a single compact housing, reducing the number of separate media required. Its 250 l/h flow rate is matched to small tanks to provide steady circulation without excessive current. The built-in skimmer helps remove surface oil and particles that can inhibit oxygen transfer. Installation and routine cartridge replacement are intended to be quick and accessible, making the filter suitable for users who prefer low-complexity equipment.
Suitable for
Small freshwater aquariums and desktop tanks up to 25 L
Planted tanks with low to moderate bioload
Temporary quarantine or hospital tanks
Users seeking a compact external filter with combined mechanical/biological media and surface skimming
When it may not be suitable
This filter is not designed for aquariums larger than 25 litres or for systems with high stocking densities that require greater turnover and advanced biological media. It may also be insufficient for tanks housing heavy waste-producing species, marine setups, or larger planted aquaria where stronger flow and specialized filtration are necessary.
Key specifications
Recommended aquarium volume: up to 25 L
Flow rate: 250 litres per hour
Included media: bio filter roll (mechanical and biological function)
Integrated surface skimmer for removal of floating debris
Compact external housing suitable for small installations
How to use
Mount the filter on the external position recommended in the manual or place it beside the aquarium with hoses connected according to the supplied instructions. Prime the unit if required and power it on to establish circulation. Periodically inspect the bio filter roll and replace it when visibly clogged or according to the maintenance schedule; cleanse the skimmer and intake to maintain unobstructed flow. Follow manufacturer guidance for safe electrical connections and initial cycling of a new filter to establish beneficial bacterial colonization.
What to consider before purchase
Tank size and bioload — suitable for aquariums up to 25 L with light to moderate stocking
Desired flow — 250 l/h provides gentle circulation appropriate for small freshwater setups
Maintenance frequency — bio filter roll will require regular replacement or cleaning
Compatibility — intended for freshwater use; verify fit and hose connections for your tank
Usage recommendations
For best results, use the filter in tanks with low to moderate bioload and replace the bio filter roll before it becomes heavily clogged. Clean the skimmer and intake weekly in heavily planted or shaded setups to prevent surface film build-up. When establishing a new aquarium, allow time for biological colonization by running the filter continuously and monitoring water parameters until stability is achieved.

## FAQ

### How much does the AquaNatura External Aquarium Filter TN-45196 250 l/h cost, and is it available for purchase?

The price is 11.99 € (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 22.07.2026 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