# Water test reagent sera Chlorine-Test (Cl) 15 ml — for measuring chlorine in water

**URL:** https://aio.lv/en/product--sera-se-04810--12254014
**Data updated:** 2026-04-06 10:00 (EEST)
**Category:** Aquarium Supplies
**Manufacturer:** sera
**Manufacturer code:** SE-04810
**EAN:** 4001942048101
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sera-se-04810--12254014

## 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

sera Chlorine-Test (Cl) is a 15 ml water test reagent for determining free chlorine levels. Designed for quick reagent-based colorimetric measurement of chlorine (Cl) in aquariums, ponds and water samples. Supplied in a hanging box; suitable for routine monitoring and maintaining safe water conditions.

## Long description

Tetra Chlorine-Test (Cl) is a liquid reagent test for monitoring free chlorine levels in fresh and marine aquarium water. The 15 ml reagent provides a simple way to check whether water contains chlorine and to verify the effectiveness of dechlorination treatments before introducing fish or other aquatic animals.
Advantages
The test is compact and easy to use, requiring only a small sample of water and a few drops of reagent to obtain a quick result. It is suitable for routine checks and helps ensure safe water conditions by confirming the removal of chlorine after treatment with dechloraminating products.
Suitable for
Testing chlorine in freshwater aquariums
Testing chlorine in marine or brackish aquaria
Verifying effectiveness of dechlorination agents before adding fish
Regular water quality checks during tank maintenance
When it may not be suitable
This reagent test measures chlorine only and does not provide information about other important water parameters such as ammonia, nitrite, nitrate, or pH. For comprehensive water analysis you will need additional tests. The small 15 ml volume is intended for periodic checks and may be insufficient for very frequent or professional laboratory use.
Key specifications
Measured parameter: Chlorine (Cl)
Form: Liquid reagent
Volume: 15 ml
Package type: Hanging box
Country of origin: Germany
How to use
Collect a sample of aquarium water and add the specified number of reagent drops according to the test instructions, then compare the resulting colour to the reference scale included with the test. If chlorine is detected, treat the water with an appropriate dechlorinating product and retest to confirm removal before introducing fish.
What to consider before purchase
Test measures only chlorine; additional tests required for other parameters
15 ml reagent is sufficient for approximately 45 measurements
Intended for routine, at-home aquarium checks rather than high-volume laboratory use
Usage recommendations
Use this Chlorine-Test to check water after fillings or tap water changes and retest after applying dechlorination products such as sera aquatan, sera KOI PROTECT, sera toxivec or sera pond toxivec to ensure chlorine has been neutralised before adding fish.

## Specifications

| Feature | Value |
|---|---|
| Country of origin | Germany |
| Package type | Hanging box |
| Volume | 0.015 L |
| Product type | Water test reagent |
| Measured parameters | Chlorine (Cl) |
| Number of tests | 45 |
| Suitable for pond water | Yes |
| Suitable for aquarium water | Yes |

## FAQ

### How much does the sera Chlorine-Test (Cl) 15 ml water test reagent cost, and is it available for purchase?

The price is 12.99 € (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 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 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 sera Chlorine-Test (Cl) 15 ml water test reagent?

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/12254014/68160328_large.webp