# Water test reagent sera Ammonium/ammonia-Test NH4/NH3 Ammonia NH3 NH4 0.015 L

**URL:** https://aio.lv/en/product--sera-103441--11606540
**Data updated:** 2026-03-11 13:39 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** sera
**Manufacturer code:** 103441
**EAN:** 4001942049108
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sera-103441--11606540

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

The sera Ammonium/ammonia-Test (NH4/NH3) is a water test reagent designed for measuring ammonia levels in water. With a volume of 0.015 L, this product is essential for maintaining water quality in aquariums and ponds. Manufactured in Germany, it provides reliable results for both NH3 and NH4 parameters, ensuring optimal conditions for aquatic life.

## Long description

The sera Ammonium/ammonia-Test (NH4/NH3) is a water test reagent for measuring ammonium and ammonia concentrations in fresh and marine water. Supplied in a 0.015 L reagent bottle and manufactured in Germany, the test determines the combined concentration of NH4 and NH3; the actual ammonia (NH3) fraction can be calculated from the measured total and the water pH using the included chart. The reagent is suitable for routine monitoring of aquarium and pond water and is sufficient for approximately 60 measurements.
Advantages
This sera reagent provides a compact, purpose-built solution for measuring total ammonium/ammonia. It supports both freshwater and marine use, is produced in Germany to established quality standards, and includes a conversion chart to interpret NH3 levels from total measurements and pH. The small 0.015 L volume is adequate for about 60 tests, allowing regular checks without large storage needs.
Suitable for
 Routine monitoring of aquarium water
 Checking pond water for ammonium/ammonia
 Assessing water quality after stocking or feeding
 Verifying the effectiveness of biological or chemical treatments
Key specifications
 Analyte: total ammonium/ammonia (NH4/NH3)
 Reagent volume: 0.015 L
 Usage capacity: approximately 60 measurements
 Intended media: fresh and marine water
 Country of manufacture: Germany
How to use
Collect a sample of aquarium or pond water following the test kit instructions supplied with the sera reagent. Add the reagent in the prescribed amount to the sample, observe the colour change or measurement result as indicated by the test procedure, and compare results to the included colour chart. Use the provided pH chart to calculate the proportion of toxic free ammonia (NH3) from the measured total ammonium/ammonia concentration (NH4/NH3). Follow safety and disposal instructions printed on the product label.
Usage recommendations
Measure ammonium/ammonia regularly after changes such as new fish introductions, increased feeding, or following treatment with chemical agents. In cases of elevated values, consider using appropriate sera corrective products for acute or lasting issues and perform partial water changes as required. Store the reagent in a cool, dark place and keep bottle tightly closed between uses.

## Specifications

| Feature | Value |
|---|---|
| Country of origin | Germany |
| Package type | Hanging box |
| Volume | 0.015 L |
| Product type | Water test reagent |
| Measured parameters | Ammonia (NH3 / NH4) |
| Number of tests | 60 |
| Suitable for pond water | Yes |
| Suitable for aquarium water | Yes |

## FAQ

### How much does the Water test reagent sera Ammonium/ammonia-Test NH4/NH3 cost, and is it available for purchase?

The price is 15.99 € (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 29.06.2026 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 sera 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 sera 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

### Where can I download the instructions for Water test reagent sera Ammonium/ammonia-Test NH4/NH3?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11606540/66783972_large.webp