--- product_id: 48415451 title: "Ammonia Alert for Freshwater and Marine Fish" brand: "seachem" price: "S$27" currency: SGD in_stock: true reviews_count: 13 category: "Seachem" url: https://www.desertcart.sg/products/48415451-ammonia-alert-for-freshwater-and-marine-fish store_origin: SG region: Singapore --- # Continuous real-time monitoring Works in fresh & marine tanks Instant ammonia detection Ammonia Alert for Freshwater and Marine Fish **Brand:** seachem **Price:** S$27 **Availability:** ✅ In Stock ## Summary > 🟡 Stay ahead of ammonia spikes—because your fish deserve the best! ## Quick Answers - **What is this?** Ammonia Alert for Freshwater and Marine Fish by seachem - **How much does it cost?** S$27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/48415451-ammonia-alert-for-freshwater-and-marine-fish) ## 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 - • **Trusted by Experts:** Backed by Seachem’s reliable sensor technology and thousands of positive reviews. - • **Continuous Monitoring:** Provides 24/7 real-time ammonia level tracking without any hassle. - • **Instant Ammonia Alerts:** Color-changing sensor reacts quickly to ammonia spikes, giving you peace of mind. - • **Compact & Low Maintenance:** Tiny, lightweight design fits seamlessly inside your tank for constant vigilance. - • **Dual Environment Compatibility:** Perfectly designed for both freshwater and marine aquariums, ensuring versatile use. ## Overview Seachem Ammonia Alert is a compact, color-changing sensor that continuously monitors ammonia levels in both freshwater and marine aquariums. Trusted by aquarists worldwide, it provides instant visual warnings of harmful ammonia spikes, helping maintain a safe environment for your fish with minimal effort. ## Description Product Description Seachem Ammonia Alert Directions Put water in and leave for constant readings. Legal Disclaimer final sale Box Contains water treatment Review: Trusted Brand - Quick changing sensor - I always have one of these seachem ammonia alerts inside my tank and have done so for years - they do work very well - i have tested them with real ammonia and the yellow disc in the centre of the alert card changes colour very quickly when exposed to even just the ammonia gasses, therefore this gives me the confidence it will work inside my tank and if something happens and we have an ammonia spike. Expensive for what it is, but peace of mind is everything! Review: Great visual reminder - Great little product for tanks, I wouldn't trust it completely and new aquarists or uncycled tanks will require better testing. However Great little visual marker for established and balanced aquariums. ## Features - Seachem sensor technology - Continuously monitors ammonia - Marine and freshwater ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000255R5G | | Allergen Information | Yam Free | | Brand | Seachem | | Brand Name | Seachem | | Country Of Origin | USA | | Customer Reviews | 4.2 out of 5 stars 3,303 Reviews | | Global Trade Identification Number | 00000116001007 | | Included Components | Ammonia Alert | | Item Form | Alder cones, Barley straw, Chemical release, Natural materials | | Item Type Name | Seachem Ammonia Alert | | Item Weight | 0.01 Grams | | Item form | Alder cones, Barley straw, Chemical release, Natural materials | | Item weight | 0.01 Grams | | Liquid Volume | 1 Kilograms | | Liquid volume | 1 Kilograms | | Manufacturer | Seachem | | Manufacturer Part Number | 10 | | Model Number | 10 | | Number of Items | 1 | | Pet Type | Fish | | Product Warranty | 1 | | Target Species | Fish | | UPC | 798256226922 617407622898 000116001007 707005108594 | | Unit Count | 1 count | | Unit count | 1 count | ## Product Details - **Brand:** Seachem - **Item form:** Alder cones, Barley straw, Chemical release, Natural materials - **Item weight:** 0.01 Grams - **Liquid volume:** 1 Kilograms - **Unit count:** 1 count ## Images ![Ammonia Alert for Freshwater and Marine Fish - Image 1](https://m.media-amazon.com/images/I/81oJuXh-XOL.jpg) ## Available Options This product comes in different **Color, Item Package Quantity** options. ## Questions & Answers **Q: does this need batteries?** A: No... its a thin piece of plastic with some kind of reacting Paint in the circular pattern & a sucker that attaches it to the inside of your tank glass. sounds flimsy but they last for ages. **Q: How long does this last ?** A: Official manufacturer information: At least one year! Just google the product name and you will find it, Amazon doesn't allow links here.Let us know if we can help with any other information!All the bestCarsten from STATTRAND **Q: Can this be used in a fresh water / tropical tank or is it salt water only like most of seacham's products?** A: This is for both fresh water and salt water. **Q: Do you remove all the plastic wrap , mine stayed on the centre disc** A: The centre disk needs to be exposed to the water. It should not be covered ## Customer Reviews ### ⭐⭐⭐⭐⭐ Trusted Brand - Quick changing sensor *by T***D on 9 September 2026* I always have one of these seachem ammonia alerts inside my tank and have done so for years - they do work very well - i have tested them with real ammonia and the yellow disc in the centre of the alert card changes colour very quickly when exposed to even just the ammonia gasses, therefore this gives me the confidence it will work inside my tank and if something happens and we have an ammonia spike. Expensive for what it is, but peace of mind is everything! ### ⭐⭐⭐⭐⭐ Great visual reminder *by T***R on 8 October 2023* Great little product for tanks, I wouldn't trust it completely and new aquarists or uncycled tanks will require better testing. However Great little visual marker for established and balanced aquariums. ### ⭐⭐⭐⭐⭐ Don’t rely on these! *by C***E on 16 March 2025* ***updated review based on new knowledge of how this works, please read and ignore the review underneath.*** This works by identifying dangerous ammonia not total ammonia which includes ammonium, typically the water test kits identify both ammonia and ammonium (which isn’t as dangerous to fish) and therefore will always show higher levels of Ammonia, so although water test kits are best and tell you where you are in the cycle, the alert is the one which will tell you when your fish are in danger without the need for water testing continuously. As soon as you see the alert start to rise you know there are dangerous levels of Ammonia present. This alert is best for an already cycled tank, I can say that my tank is now full of algae and happily cycled and I had no major issues. Just be aware that water test kits are a MUST and really i would only use those to cycle with. The Ammonia Alert does its job well, it won’t register total ammonia, only dangerous ammonia which is what’s important. I would recommend it for peace of mind when you get on with your cycled aquarium. Be patient and wait for the test kits to show 0 on both ammonia and Nitrite and then get this alert. Hope that helps. ***original review***Just a word of caution to anyone doing a fish in cycle with bottled bacteria (colony). This alarm thing seems a great idea but in reality the reaction is very delayed and shows 0 at low level ammonia, when water tests show 0.25, this showed 0. I woke in the middle of the night (thank goodness I did) and one of my clowns were agitated. Checked water parameters and ammonia is at 0.50! The “alarm” barely shows 0.04. A big difference 😩 thank god I had Seachem Prime to hand otherwise it would have been a horrible ending. It’ll stay in my tank but it’s definitely too delayed to make a quick change to save your fish, rely on water tests only. ## 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.sg/products/48415451-ammonia-alert-for-freshwater-and-marine-fish](https://www.desertcart.sg/products/48415451-ammonia-alert-for-freshwater-and-marine-fish) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-25*