Description
xReal-time ammonia monitoring without guesswork
Seachem Ammonia Alert provides continuous visibility into free ammonia levels in your aquarium. Using advanced sensor technology, it changes color as conditions shift, offering a quick visual readout without the need for test kits or reagents. In normal conditions it may show a yellow or pale yellow-green hue; a greenish tint on a dry sensor is normal and can take a few days to equilibrate with water when first installed.
What makes it unique
- Seachem sensor technology for stable, long-term readings
- No strips, no tests—constant readings you can trust
- Suitable for marine and freshwater tanks
Key specifications include detection of free ammonia down to 0.05 mg/L, and a color progression from yellow to green to blue corresponding to concentration levels. The device provides continuous detection with a quick about 15-minute response to rising ammonia, and a slower return to safe levels when ammonia is removed—typically several hours, depending on water turnover.
How you can use Ammonia Alert in everyday scenarios
- During tank cycling, weekly maintenance, or after introducing new livestock, use it as an early warning system.
- In both reef and freshwater setups, rely on it to complement visual cues and occasional tests.
Notes on use and setup: There is no water sampling required. The unit lasts over a year under typical use. If the sensor is dry on installation, it may show a greenish hue and require a few days to equilibrate with the water. The absence of free ammonia is signaled by the yellow or faint yellow-green color, signaling normal conditions so you can proceed with confidence.
FAQ
Q: What does Seachem Ammonia Alert do?
A: It continuously monitors free ammonia with a color-change sensor, signaling safe or toxic ranges without water sampling.
Q: How long does the unit last and how quickly does it respond?
A: Lasts over a year under typical use; responds to rising ammonia within about 15 minutes and reverts gradually after removal.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
- Choosing a selection results in a full page refresh.
