# Liquid nitrate remover Tetra NitrateMinus 100 ml – aquarium water treatment solution

**URL:** https://aio.lv/en/product--tetra-28522--12080878
**Data updated:** 2026-03-12 21:59 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Tetra
**Manufacturer code:** 28522
**EAN:** 4004218148628
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tetra-28522--12080878

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Tetra NitrateMinus is a 100 ml liquid formulation designed to reduce nitrate levels in aquarium water. The product treats aquarium water chemistry to help control nitrate buildup between water changes. It is suitable for use in freshwater tanks to support plant and fish health by lowering nitrates and improving water quality when used according to instructions.

## Long description

Tetra NitrateMinus 100 ml is a liquid aquarium water treatment solution formulated to reduce nitrate (NO3-) levels in freshwater aquaria. The product supports water quality management between water changes by promoting biological nitrate removal through active microorganisms. Supplied in a 100 ml dose, it is designed to treat up to 400 litres of aquarium water when used according to the instructions.
Advantages
The formulation contains particles that stimulate the activity of microorganisms which biologically metabolise and reduce nitrate. Regular use helps control nitrate buildup, contributing to clearer water and a more balanced aquarium environment. The liquid format allows precise dosing and integration into routine water maintenance.
Suitable for
 Freshwater aquariums where nitrate reduction is required
 Planted tanks needing improved water quality between water changes
 Hobby aquarists seeking biological rather than purely chemical nitrate control
Key specifications
 Form: liquid
 Active action: promotes microorganism activity for biological nitrate breakdown
 Target parameter: nitrate (NO3-)
 Volume: 100 ml (treats up to 400 litres of aquarium water)
 Intended aquarium type: freshwater aquaria
How to use
Use Tetra NitrateMinus according to the dosing instructions on the product label. Add the recommended dose to aquarium water, taking care to follow the specified volume-to-water ratio (100 ml treats up to 400 litres). Ensure proper mixing by gently stirring or allowing circulation from the filter. Monitor nitrate levels regularly with an appropriate test kit and adjust treatment frequency based on test results and aquarium conditions.
Usage recommendations
Combine biological nitrate reduction with regular partial water changes, appropriate feeding practices and routine filter maintenance to maintain stable water quality. Avoid overdose and follow label instructions; observe fish and plants after application and test water parameters to verify effectiveness.

## Specifications

| Feature | Value |
|---|---|
| Volume | 100 ml |
| Substance | Liquid (concentrate) |
| Suitable for | Outdoor |

## FAQ

### How much does the Tetra NitrateMinus 100 ml — nitrate remover cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 70 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 03.07.2026 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 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/12080878/67575652_large.webp