--- product_id: 3560443 title: "Seachem Ammonia Alert" brand: "seachem" price: "89 zł" currency: PLN in_stock: true reviews_count: 11 category: "Seachem" url: https://www.desertcart.pl/products/3560443-seachem-ammonia-alert store_origin: PL region: Poland --- # 1+ year continuous monitoring Marine & freshwater compatible Instant color-coded ammonia alert Seachem Ammonia Alert **Brand:** seachem **Price:** 89 zł **Availability:** ✅ In Stock ## Summary > 🟢 Stay ahead of toxic threats—your fish’s silent guardian! ## Quick Answers - **What is this?** Seachem Ammonia Alert by seachem - **How much does it cost?** 89 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/3560443-seachem-ammonia-alert) ## Best For - seachem enthusiasts ## Why This Product - Trusted seachem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Environment Ready:** Perfect for both marine and freshwater tanks - • **Ultra-Sensitive Sensor:** Detects ammonia levels below 0.05 mg/L for early intervention - • **24/7 Toxic Ammonia Detection:** Real-time color sensor alerts you before fish stress begins - • **Long-Lasting & Low Maintenance:** Over a year of continuous monitoring with zero hassle - • **No Test Kits or Chemicals Needed:** Forget messy strips—just watch the color change ## Overview Seachem Ammonia Alert is a revolutionary sensor tag that continuously monitors toxic free ammonia in both marine and freshwater aquariums. Using a color-changing sensor that shifts from yellow to green to blue, it provides instant, chemical-free readings with sensitivity below 0.05 mg/L. Designed for long-term use, it offers over a year of reliable, real-time ammonia detection, empowering aquarium managers to prevent fish stress and maintain optimal water quality effortlessly. ## Description Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from Yellow to green to Blue, relative to the ammonia concentration. No test Kits, chemicals, or procedures are needed. The device detects less than 0.05 mg/L (ppm) free ammonia and alerts you to the #1 killer before any sign of stress. It lasts over a year. Marine or freshwater use. In the absence of free ammonia the unit will assume a Yellow or faint yellow-green color. It is normal for the dry sensor to have a greenish hue. It may take up to a few days for a dry sensor to equilibrate with the water. No sampling of water, chemicals, or test procedures are required. The presence of the free ammonia is detectable continuously with a Response time of about 15 minutes. Response to decreasing ammonia is slower, requiring about 4 hours to go from toxic to safe on removal of ammonia. Review: Works well. Measures toxic portion of total ammonia - Works great. Measured the toxic portion (unbound) of ammonia in your tank 24/7. If it goes up, add Prime to give yourself 24-48 hours to act by temporarily neutralizing its toxicity. Couple this with an API or Salifert ammonia test to test total ammonia (toxic and nontoxic) to figure out how much ammonia you have to eliminate. Water changes, Dr Tim’s One and Done nitrobacter, etc will help you remove the ammonia from the system. Unless you overstocked, then you are cooked lol Review: Excellent But Misunderstood Product - I was so worried about purchasing this ammonia reader due to the amount of bad reviews. However, after doing tons of research and deciding to purchase it after all, I realized that a lot of the negative reviews were because people weren’t quite understand just exactly how the Ammonia Alert operates. It measures the amount of unionized (dangerous) levels of ammonia in the water, whereas test kits measure both the ionized (safe) and unionized (unsafe) ammonia present in the water. Therefor, the only reading you’re getting on the Ammonia Alert is that of the toxic ammonia present in your tank. This product definitely works. A few days ago, the reading on it was at the ‘Alert’ mark, which it turned a pastel green. Then, when I checked it today, it was a pastel yellow and definitely matched the ‘Safe’ zone on the wheel. Even though the color readings can be extremely subtle, they’re pretty easy to pick out when it changes. I also compared its reading with a quick test from the API ammonia test kit, to which it came back with 0 ammonia in my aquarium. Another thing I must add is that you MUST be extremely careful when you open up the product. When you remove the plastic covering for the sensor in the middle of the color wheel, do not touch the sensor with your fingers. The oils from your fingers could affect or ruin your sensor. Overall, I’m extremely pleased with this simple and cheap product. It will assure me that my fish are living well and I can take necessary action when it goes into the ‘Alert’ zone. I definitely recommend the Ammonia Alert if you’d like to monitor your aquarium’s ammonia levels while avoiding frequent water testing. ## Features - Sachem sensor Technology - No Strips, no tests, just constant readings - For marine and freshwater use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000255R5G | | ASIN | B000255R5G | | Allergen Information | Yam Free | | Best Sellers Rank | #9,895 in Pet Supplies ( See Top 100 in Pet Supplies ) #12 in Aquarium Test Kits | | Brand Name | Seachem | | Customer Reviews | 4.2 4.2 out of 5 stars (3,912) | | Date First Available | June 15, 2004 | | Global Trade Identification Number | 00000116001007 | | Included Components | all | | Is Discontinued By Manufacturer | No | | Item Form | tag | | Item Type Name | Alert badge | | Item Weight | 0.01 Grams | | Item model number | 10 | | Liquid Volume | 1 Kilograms | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer Part Number | 10 | | Manufacturer recommended age | 1 month and up | | Model Number | 10 | | Target Species | Fish | | UPC | 798256226922 617407622898 000116001007 707005108594 | | Unit Count | 1 Count | ## Product Details - **Brand:** Seachem - **Item Form:** tag - **Item Weight:** 0.01 Grams - **Liquid Volume:** 1 Kilograms - **Manufacturer:** Seachem Laboratories, Inc. ## Images ![Seachem Ammonia Alert - Image 1](https://m.media-amazon.com/images/I/81oJuXh-XOL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well. Measures toxic portion of total ammonia *by T***H on February 26, 2026* Works great. Measured the toxic portion (unbound) of ammonia in your tank 24/7. If it goes up, add Prime to give yourself 24-48 hours to act by temporarily neutralizing its toxicity. Couple this with an API or Salifert ammonia test to test total ammonia (toxic and nontoxic) to figure out how much ammonia you have to eliminate. Water changes, Dr Tim’s One and Done nitrobacter, etc will help you remove the ammonia from the system. Unless you overstocked, then you are cooked lol ### ⭐⭐⭐⭐⭐ Excellent But Misunderstood Product *by J***E on March 5, 2020* I was so worried about purchasing this ammonia reader due to the amount of bad reviews. However, after doing tons of research and deciding to purchase it after all, I realized that a lot of the negative reviews were because people weren’t quite understand just exactly how the Ammonia Alert operates. It measures the amount of unionized (dangerous) levels of ammonia in the water, whereas test kits measure both the ionized (safe) and unionized (unsafe) ammonia present in the water. Therefor, the only reading you’re getting on the Ammonia Alert is that of the toxic ammonia present in your tank. This product definitely works. A few days ago, the reading on it was at the ‘Alert’ mark, which it turned a pastel green. Then, when I checked it today, it was a pastel yellow and definitely matched the ‘Safe’ zone on the wheel. Even though the color readings can be extremely subtle, they’re pretty easy to pick out when it changes. I also compared its reading with a quick test from the API ammonia test kit, to which it came back with 0 ammonia in my aquarium. Another thing I must add is that you MUST be extremely careful when you open up the product. When you remove the plastic covering for the sensor in the middle of the color wheel, do not touch the sensor with your fingers. The oils from your fingers could affect or ruin your sensor. Overall, I’m extremely pleased with this simple and cheap product. It will assure me that my fish are living well and I can take necessary action when it goes into the ‘Alert’ zone. I definitely recommend the Ammonia Alert if you’d like to monitor your aquarium’s ammonia levels while avoiding frequent water testing. ### ⭐⭐⭐⭐⭐ Small, sleek and reversible *by G***A on February 19, 2026* Very small and useful. Also the suction cup is reversible in case you want to to hide it in back of tank but still read it. I also trimmed the excess plastic with logos off to have a more sleek look. ## Frequently Bought Together - Seachem Ammonia Alert - Seachem Ph Alert for Freshwater - Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 ml --- ## 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.pl/products/3560443-seachem-ammonia-alert](https://www.desertcart.pl/products/3560443-seachem-ammonia-alert) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-16*