SKU: 84193528837

Seachem Ammonia Alert

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Description

Seachem Ammonia AlertSeachem Ammonia Alert 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. This product is not recommended for use

Seachem Ammonia Alert

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. This product is not recommended for use at acid pH. 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.

Ammonia Alert® lasts over 9X as long as competing products.
Ammonia Alert® is also almost half the size of competing products. It's small, clear, and unobtrusive, so it won't detract from the view of your aquarium.

Interpretation

Safe
<0.02 mg/L

No action required

Alert
0.05 mg/L

Tolerated for 3-5 days. Monitor and consider a water change soon.

Alarm
0.2 mg/L

Tolerated for 1-3 days. Perform a water change soon.

Toxic
0.5 mg/L

Perform water change or treat with AmGuard™ for emergency ammonia removal

As little as 0.02 mg/L of free ammonia will produce a greenish hue on the detector surface. This corresponds to a total ammonia (both ionized and free ammonia) of 0.25 mg/L in marine water at pH 8.3. In freshwater at pH 7.0, this corresponds to 3.6 mg/L total ammonia.

Free ammonia is much more toxic than ionized ammonia. As free ammonia, the ALERT color corresponds to about 0.05 mg/L, ALARM to about 0.2 mg/L, and TOXIC to about 0.5 mg/L. Administering a water change should be considered for any indication other than SAFE. The ALERT concentration is tolerated for 3-5 days, ALARM for 1-3 days, and TOXIC is rapidly harmful, requiring immediate attention. For emergency ammonia removal, treat with AmGuard™.

Care

No care is required beyond removing algae with a clean, soft material. Avoid touching the sensor with fingers, since skin oils can damage it. Do not use bleach, soap, detergents or hard objects to clean the sensor. Some dye medications may discolor the sensor. Sensitivity improves with age, provided the unit is not allowed to dry out, however, drying does not permanently impair the unit. For maximum sensitivity, the unit should be read under natural daylight or daylight simulating light. Red enhancing light minimizes green and blue hues, decreasing the apparent sensitivity of the unit. The response of the unit may be checked by holding it briefly over the mouth of an ammonia bottle: color should develop rapidly.

A: The Ammonia Alert® sensor should last about a year before you should need to replace the sensor. To test it gently hold the card over a bottle of ammonia; the sensor should quickly change to a dark blue. It may take about an hour for it to return to its original color.

A: Most likely the other test kit was testing for total ammonia. Total ammonia includes both free (NH3) and ionic (NH4+) ammonia. The Ammonia Alert® only measure free ammonia because that is the harmful form. Ionic ammonia cannot harm your fish. However, as pH rises, a greater and greater percentage of the total ammonia will be converted from ionic ammonia to free ammonia, so knowledge of total ammonia is also important.

A: If the Prime® has not complexed with the ammonia yet it will detect it, but it won't detect it if the Prime® has already complexed it (which makes sense because when Prime® has complexed with the ammonia it is no longer toxic).

A: The technology of this device is very unique to our company and has been an excellent seller for many years to hobbyists, breeders, and public facilities alike. The Ammonia Alert® is designed to change color in the presence of free (gaseous) ammonia, not ammonium (ionized ammonia) which is harmless to fish and other aquatic life. The longer it is left in a particular body of water/aquarium, the more sensitive it becomes to that water. Most conventional test kits test total ammonia which is a combination of free ammonia + ammonium = total ammonia. PH is the determining factor on what type is present. If your pH is acidic (below 7.0), it is chemically impossible for ammonia (harmful gas) to exist. Yet a total ammonia test kit will register a reading because it detects both the free ammonia (harmful gas) and ammonium (harmless ionized form of ammonia). The more basic your pH becomes, the greater the chance of ammonia existing. Example: If you have 1.0 ppm of total ammonia and your pH is below 7.0, then 1.0 ppm will exist as ammonium. Ex. If you have 1.0 ppm of total ammonia and your pH is 7.6 (slightly basic), then of that 1.0 ppm total ammonia......only .2 or so would exist as a gas and the other .8 would exist as ammonium.

There is one simple way to tell if our Ammonia Alert® is functioning properly, simply hold the sensor over an open bottle of something containing ammonia (Windex glass cleaner will work) as it will detect the fumes/gas and change color. Please be sure not to touch the sensor in the middle of the plastic card as the oils from your skin may clog the pores on the sensor.

.

A: Yes it does work accurately, however as a product like Ammo Lock is removing the ammonia the transition back to yellow will take some time, so don't be concerned if you don't see an immediate shift back to yellow. The Ammonia Alert® is always faster to respond to increasing ammonia levels than to decreasing.

A: The greyish color indicates the "Alarm" state of ammonia. Was it grey or yellow when you took it out of the package and placed it in the tank? If it was yellow when you put it in and is now "grey" then that means you have a high level of ammonia and should do a water change very soon or treat with our AmGuard if a water change is not feasible within 24 hours.

A: Store it in a small amount of RO water to keep the sensor wet while not in use.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84193528837

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Maria
Cuba, US
★★★★★ 5
I recommend using this book. Read review.
Format: Hardcover
I recommend this book. Not only because it's a Dr. Sue's book, but because at the end of the school year. I ask my son's teacher to sign it. It's a sweet memory to have and it will be a sweet memory to look at once they graduate Elementary. It's a must. The price is great. Quality... Everything about it is great. Most of all.... Reading the their teacher's have to say about them. Is so sweet!
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Reviewed in the United States on May 23, 2026
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Mommy Sarah
Fort Morgan, US
★★★★★ 5
Dr. Suess. Enough Said.
Format: Hardcover, Format: Hardcover
Welcome to the whimsical world of Dr. Seuss, where "Oh, the Places You'll Go!" isn't just a book—it's a roadmap to life's most thrilling escapades! If life were a rollercoaster, this book would be the front-row seat to the wildest ride of all. From the moment you crack open its vibrant pages, you're whisked away on an exhilarating journey filled with colorful landscapes, quirky characters, and nuggets of wisdom disguised in Seussian rhymes. It's a literary wonderland where imagination reigns supreme, and the words dance off the pages, pulling you into an adventure unlike any other. Dr. Seuss, the maestro of whimsy and wonder, takes you on a whirlwind exploration of life's ups and downs, encouraging you to embrace every twist, turn, and unexpected detour with unbridled enthusiasm. Whether you're just starting out on life's path or navigating its winding roads, this book serves as a beacon of hope, inspiration, and boundless possibilities. Now, let's talk about the humor woven into every verse—oh, it's a riot! Dr. Seuss's playful language and zany illustrations transform life's perplexities into delightful puzzles to solve. You'll find yourself chuckling at the absurdity of the situations and nodding knowingly at the profound truths hidden within the jest. And oh, the illustrations! They're a visual feast for the eyes, bursting with vibrant hues and fantastical landscapes that transport you to worlds beyond your wildest dreams. The whimsical characters and their expressions evoke emotions that range from sheer joy to contemplative reflection, leaving an indelible mark on your heart. But wait, there's more! This book isn't just for kids—it's a timeless gem that resonates with readers of all ages. Whether you're 8 or 80, the wisdom embedded in its verses speaks volumes about the human spirit's resilience, determination, and unwavering courage to conquer life's myriad challenges. In essence, "Oh, the Places You'll Go!" isn't merely a book; it's a celebration of life's rollercoaster, a symphony of laughter, and a profound reminder that the journey itself is the greatest adventure of all. So, buckle up, embrace the whimsy, and get ready to soar to unimaginable heights—you're in for an exhilarating ride! *Disclaimer: May induce spontaneous outbreaks of giggles and an insatiable thirst for adventure!*
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Reviewed in the United States on November 15, 2023
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Eve Allen
Lexington, US
★★★★★ 5
Oh, the places you'll go! Book Review
Format: Hardcover
Perfect hardcover book for such an affordable price!
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Reviewed in the United States on May 25, 2026
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Destiny Evans
Birmingham, US
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Must have
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Great quality hard back book. I have purchased 4, one for each of my children and will eventually but 2 more. Highly recommend.
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Reviewed in the United States on May 18, 2026
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Donna K
Chelsea, US
★★★★★ 5
Makes a great graduation gift
Format: Hardcover
It's a classic! I bought it for my granddaughter's kindergarten graduation. I've asked her teacher to write a note in it.
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Reviewed in the United States on May 29, 2026

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