# Test kit Tetra 6in1, model 98661, 10 pcs — aquarium water test strips for pH, nitrite, nitrate, hardness, chlorine, alkalinity

**URL:** https://aio.lv/en/product--tetra-98661--11071728
**Data updated:** 2026-02-25 16:40 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Tetra
**Manufacturer code:** 98661
**EAN:** 4004218283725
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-08-17 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tetra-98661--11071728

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.79 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Tetra 6in1 test kit (model 98661) contains 10 test strips for quick multi-parameter analysis of aquarium water. Each strip checks six key parameters: pH, nitrite, nitrate, general hardness, chlorine and alkalinity. Designed for routine monitoring to help maintain stable water conditions for freshwater aquariums and prevent fish stress and water-quality issues.

## Long description

Tetra 6in1 test kit (10 strips) provides a quick multi-parameter check of freshwater aquarium water. Each strip measures six essential water quality parameters: pH, nitrite, nitrate, general hardness (GH), chlorine and alkalinity. The strips are intended for routine monitoring to help maintain stable conditions, reduce risk of fish stress and detect changes that require water treatment or maintenance.
Advantages
The test strips offer fast visual results within seconds, allowing regular checks without complex equipment. They combine six tests on a single strip for efficient sampling and minimal handling. The format supports routine control of common water quality factors relevant to freshwater aquaria, enabling early detection of nitrite or nitrate spikes, hardness shifts, chlorine presence or pH imbalance.
Suitable for
 Freshwater community and species aquariums
 Routine water quality checks for hobbyists and small-scale keepers
 Monitoring after water changes or new fish introductions
 Quick screening before dosing treatments or adjusting filtration
Key specifications
 Number of test strips: 10
 Measured parameters: pH, nitrite (NO2-), nitrate (NO3-), general hardness (GH), chlorine (Cl2), alkalinity
 Type: multi-parameter colorimetric test strips
 Intended water type: freshwater aquarium
 Result format: color change on strip matched to reference chart
How to use
Dip a single strip into aquarium water for the time specified on the package, remove and shake off excess water, then compare the color pads to the included reference chart within the recommended read time. Use a clean container if testing water removed from the tank. Record values for pH, nitrite, nitrate, hardness and alkalinity to track trends over time and decide on corrective actions such as partial water changes, filtration adjustments or specific chemical treatments.
Usage recommendations
Store strips in their original container in a cool, dry place and seal the lid after use to preserve reagent stability. Test regularly—weekly or after maintenance events—and interpret results in context of aquarium size, stocking and recent changes. If high nitrite, nitrate or chlorine are detected, take immediate corrective measures such as water changes or using suitable conditioners formulated for aquarium use.

## FAQ

### How much does the Test kit Tetra 6in1, model cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 68 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 03.08.2026 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 Tetra 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 Tetra 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/11071728/61745275_large.webp