--- product_id: 47985204 title: "Nitrateminus Liquid, 250 ml" brand: "tetra" price: "€ 11.96" currency: EUR in_stock: true reviews_count: 13 category: "Tetra" url: https://www.desertcart.pt/products/47985204-nitrateminus-liquid-250-ml store_origin: PT region: Portugal --- # Controls algae growth effectively 250 ml precision dosing Reduces nitrate from 4.2 to 0.6 ppm Nitrateminus Liquid, 250 ml **Brand:** tetra **Price:** € 11.96 **Availability:** ✅ In Stock ## Summary > 💧 Clear water, zero nitrate, total aquarium zen. ## Quick Answers - **What is this?** Nitrateminus Liquid, 250 ml by tetra - **How much does it cost?** € 11.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/47985204-nitrateminus-liquid-250-ml) ## Best For - tetra enthusiasts ## Why This Product - Trusted tetra brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Algae Growth Control:** Keeps your aquarium crystal clear and algae-free - • **Safe for Aquatic Life:** Non-toxic formula that fish ignore, ensuring ecosystem balance - • **Trusted German Quality:** Manufactured by Tetra, a global leader in aquarium care - • **Precision Weekly Dosing:** Add 2.5 ml per 10L for consistent nitrate control - • **Rapid Nitrate Reduction:** Lowers nitrate levels significantly within hours ## Overview Tetra Nitrateminus Liquid (250 ml) is a precision-formulated aquarium treatment that reliably reduces nitrate levels, minimizing algae growth and promoting a healthier aquatic environment. Designed for weekly dosing, it quickly lowers nitrate concentrations from high levels to near zero without harming fish or coral, making it an essential solution for maintaining pristine aquarium water. ## Description Product Description Tetra Nitrateminus Liquid, 250 ml Directions Add 2.5ml of NitrateMinus per 10 litres of aquarium water, on a weekly basis. Dose rate can be doubled for additional nitrate control. Depending on the starting concentration of nitrate in the aquarium, it can take a few weeks to reach the desired level. Once achieved, levels will remain low. Review: Very good product - This product came 1 day after ordering and was very well packaged as per usual for many/most items bought from desertcart. The product it's self is in those handy sized bottles that 'Tetra' put the majority of there products in. The dosing cap is a great idea. . .Though to small for larger aquariums. I thought i would give this product a try, as i have a constant battle with high quantities of algae from the water in my area being so hard & alkaline.. Around 8-6-9 on the Ph scale. and have never had any problems with 'Tetra' products in the past.. I placed the required amount in my main 340l display tank this morning. But with displacement from rock is holding around about 240l. The product looks a little like something else in water... hahahahaha, but in a short space of time, 2-5 minutes, disperses through the tank in flakes/clumps and the particulates sinks to the bottom of the tank. With having live coral sand (white) the 'Nitrate-Minus' can not be seen. . I am sure you would see it if you have a darker aggregate. Doing this dose, once a week as directed on the bottle i know will help control the 'Nitrate' levels, which with in the hour of being placed in my tank, has reduced the Nitrate count from 4.2 to 0.6. So in conjunction with regular water changes...(which is a must) regardless of any treatments you may use, i KNOW will reduce the algae problems on the glass. The fish had no interest in the product as it dispersed through the tank, and certainly do not appear to be effected by this.. but all in all, so far i am very happy with the 'Nitrate Minus', and would tell anyone who has high levels of nitrate...(far more than i have) to give it a try... I would imagine that if i test the water tonight, my nitrate levels would be zero.. So, my opinion is that it is highly advised to use this, in conjunction with the needed and usual aquarium husbandry tasks such as regular water changes/aggregate cleaning/filter cleaning etc etc etc.. I am anticipating my sump/refuge plants to slow down in growth now also with highly reduced Nitrate levels, with the exception of the red mangroves, which grow slowly anyway.. Give it a try. :) Daz Review: Great product - Excellent quality and excellent value and service 👏 ## Features - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labelling or instructions - educes the amount of algae - New NitrateMinus reduces nitrate - Reliable nitrate reduction for less algae ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002SQIJVQ | | Best Sellers Rank | 2,322 in Pet Supplies ( See Top 100 in Pet Supplies ) 19 in Aquarium Water Treatments | | Brand | Tetra | | Brand Name | Tetra | | Country Of Origin | Germany | | Customer Reviews | 4.6 out of 5 stars 2,945 Reviews | | Global Trade Identification Number | 04004218149182 | | Item Form | Liquid | | Item Weight | 250 Grams | | Item form | Liquid | | Item weight | 250 Grams | | Liquid Volume | 250 Millilitres | | Liquid volume | 250 Millilitres | | Manufacturer | Spectrum Brands | | Manufacturer Part Number | T277 | | Model Number | T277 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Fish | | Unit Count | 250.0 millilitre | | Unit count | 250.0 millilitre | ## Product Details - **Brand:** Tetra - **Item form:** Liquid - **Item weight:** 250 Grams - **Liquid volume:** 250 Millilitres - **Number of Packs:** 1 ## Images ![Nitrateminus Liquid, 250 ml - Image 1](https://m.media-amazon.com/images/I/71cQIvIDM-L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good product *by B***Z on 22 April 2014* This product came 1 day after ordering and was very well packaged as per usual for many/most items bought from Amazon. The product it's self is in those handy sized bottles that 'Tetra' put the majority of there products in. The dosing cap is a great idea. . .Though to small for larger aquariums. I thought i would give this product a try, as i have a constant battle with high quantities of algae from the water in my area being so hard & alkaline.. Around 8-6-9 on the Ph scale. and have never had any problems with 'Tetra' products in the past.. I placed the required amount in my main 340l display tank this morning. But with displacement from rock is holding around about 240l. The product looks a little like something else in water... hahahahaha, but in a short space of time, 2-5 minutes, disperses through the tank in flakes/clumps and the particulates sinks to the bottom of the tank. With having live coral sand (white) the 'Nitrate-Minus' can not be seen. . I am sure you would see it if you have a darker aggregate. Doing this dose, once a week as directed on the bottle i know will help control the 'Nitrate' levels, which with in the hour of being placed in my tank, has reduced the Nitrate count from 4.2 to 0.6. So in conjunction with regular water changes...(which is a must) regardless of any treatments you may use, i KNOW will reduce the algae problems on the glass. The fish had no interest in the product as it dispersed through the tank, and certainly do not appear to be effected by this.. but all in all, so far i am very happy with the 'Nitrate Minus', and would tell anyone who has high levels of nitrate...(far more than i have) to give it a try... I would imagine that if i test the water tonight, my nitrate levels would be zero.. So, my opinion is that it is highly advised to use this, in conjunction with the needed and usual aquarium husbandry tasks such as regular water changes/aggregate cleaning/filter cleaning etc etc etc.. I am anticipating my sump/refuge plants to slow down in growth now also with highly reduced Nitrate levels, with the exception of the red mangroves, which grow slowly anyway.. Give it a try. :) Daz ### ⭐⭐⭐⭐⭐ Great product *by M***N on 26 March 2026* Excellent quality and excellent value and service 👏 ### ⭐⭐⭐⭐ Arrived on time *by C***K on 15 April 2026* Reduced nitrate ok ## Frequently Bought Together - Tetra Nitrateminus Liquid, 250 ml - Tetra AlguMin - Quickly Combats All Types Of Algae In The Aquarium, Prevents The Growth Of New Algae, 250 ml - Tetra EasyBalance - long-term care for biologically healthy aquarium water and a reduced number of water changes, 500 ml (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/47985204-nitrateminus-liquid-250-ml](https://www.desertcart.pt/products/47985204-nitrateminus-liquid-250-ml) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-07-01*