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API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle

4.6 4.6 out of 5 stars 4,824 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Aquarium Water Treatments by API

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Purchase options and add-ons

Brand API
Liquid Volume 16 Fluid Ounces
Item Weight 1 Pounds
Item Form Stick
Target Species Fish

About this item

  • Contains one (1) API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle
  • Detoxifies ammonia in aquarium water and tap water
  • Works instantly to make aquarium water safe for fish
  • Reduction in ammonia levels measurable on any API Test Kits
  • Dose freshwater and saltwater every two days until ammonia is not detected

Customer ratings by feature

Easy to use
4.3 4.3
Value for money
4.1 4.1
Stability
4.0 4.0
Sheerness
4.0 4.0

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API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle
API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle
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Price-29% $12.48
List:$17.48
$14.50-29% $49.98
List:$69.98
$49.90$9.89-30% $15.49
List:$22.28
Delivery
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Customer Ratings
Easy to use
4.3
4.2
4.1
Value for money
4.1
4.0
3.9
Stability
4.0
3.8
3.9
Sold By
Amazon.com
Amazon.com
Amazon.com
Pet Discounters
Black Seed Trading, LLC
Amazon.com
target species
Fish
Fish
Fish
Fish
Fish
Fish
liquid volume
16 fluid ounces
16 fluid ounces
1 gallons
120 milliliters
16 fluid ounces
form
Stick
Liquid
Ammonia
Ammonia
Liquid
weight
1 pounds
16 ounces
9.7 pounds
4 ounces
612 grams

From the manufacturer

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It’s Smart To Be Proactive!

The best way to keep your aquarium clean is to maintain good water quality. This will keep your fish strong and vibrant, as well as preventing disease.

How Do I Maintain A Healthy Environment?

It is important to test your aquarium water weekly to verify good quality in addition to a bi-weekly partial water change of no more than 25% to help reduce toxic buildup, remove debris the filter missed, and replenish the oxygen available to fish.

How Do I Take Good Care Of My Aquarium & Fish?

  • Feed & observe fish daily
  • Test water quality weekly
  • Change 25% water every 2 weeks
  • Restore your ecosystem monthly

Feed Your Fish Daily

Feed your fish twice daily with API Fish Food which contains nutritionally enhanced proteins, allowing for easy uptake of nutrients and maximum absorption, resulting in less excrement for clear, clean water. Take time to observe fish to ensure they are active & healthy and be sure to check water temperature.

FEED FISH DAILY

TEST WATER QUALITY WEEKLY

CHANGE 25% WATER EVERY 2 WEEKS

RESTORE ECOSYSTEM MONTHLY

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API TEST KITS API STRESS ZYME API FIX API STRESS COAT API QUICK START API MELAFIX
Customer Reviews
4.8 out of 5 stars
29,719
4.7 out of 5 stars
10,853
4.3 out of 5 stars
8,438
4.8 out of 5 stars
23,486
4.7 out of 5 stars
12,027
4.6 out of 5 stars
5,634
Use Weekly Helps monitor water quality Keeps aquarium clean
Use Every 2 Weeks Makes tap water safe when changing water Restores the ecosystem to help prevent fish stress
Use Monthly Restores the ecosystem to help prevent fish stress
Use When Adding New Fish Prevents disease breakout
boy feeding fish

Making A Better Underwater World

At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world.

Product Description

Fish continually release ammonia into the aquarium through their gills, urine and solid waste. Uneaten food and decaying organic matter also add ammonia to the water. Even small amounts of ammonia stress fish; large amounts of ammonia will kill fish. Ammonia is the #1 killer of freshwater fish. API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier works instantly to detoxify ammonia, chlorine, and chloramines in fresh and saltwater aquariums.  API AMMO-LOCK Ammonia Detoxifier Freshwater and Saltwater Aquarium Treatment does not remove ammonia from water; it converts it to a non-toxic form. Aquarium water will show a reduction in ammonia on API Test Kits, but a 25% water change is still recommended after dosing. For best results, use as directed on the product label. If your aquarium tests positive for ammonia, do a partial water change, then neutralize the ammonia with API AMMO-LOCK Ammonia Detoxifier Aquarium Treatment. With API aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too.

Looking for specific info?

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 6 x 6 x 8 inches; 1 Pounds
  • Manufacturer recommended age ‏ : ‎ 1 month and up
  • Item model number ‏ : ‎ 45E
  • Department ‏ : ‎ Unisex-Adult
  • Date First Available ‏ : ‎ June 20, 2004
  • Manufacturer ‏ : ‎ Mars Fishcare
  • ASIN ‏ : ‎ B000255N0A
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.6 4.6 out of 5 stars 4,824 ratings

Important information

Ingredients

Contains No Less Than 17 Percent Aliphatic Amine Salts. Each Dose Will Remove 3. Ppm Of Ammonia, 7. Ppm Of Chlorine, And 5. Ppm Of Chloramine.

Directions

Detoxifies ammonia produced by fish waste.Removes chlorine and chloramine from tap water. Eliminates ammonia stress and protects healthy gill function. Treats 240 gallons of fresh or salt water.

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
4,824 global ratings

Customers say

Customers like the value, ease of use, and quality of the aquarium pond water treatment. They mention that it's easy to follow instructions, does the job in a crisis, and is a life saver for their fish. That said, some complain that it turns the water cloudy. Customers have different opinions on ammonia.

AI-generated from the text of customer reviews

103 customers mention85 positive18 negative

Customers like the quality of the aquarium pond water treatment. They say it does the job in a crisis, it's amazing, and it helps keep the fish alive and stable while doing water changes. They also say that it works great between water changes, keeps their fish happy and healthy, and they have not had a single fish die.

"...Its effectiveness, ease of use, and ability to maintain a safe and healthy environment for my fish have made it an indispensable addition to my..." Read more

"...not being overstocked B) not overfeeding C) no dying plants...." Read more

"...It helped to keep the fish alive and stable while doing water changes, so for that I would buy it again, if ever needed." Read more

"Does the job in a crisis . Ammonia spikes happen to the best of us..." Read more

29 customers mention24 positive5 negative

Customers like the value of the water treatment. They mention that it has a good price, and the results are great. Some customers also appreciate the size of the bottle for the price.

"...AMQUEL is amazing and cost alot less. Check it out" Read more

"Good value" Read more

"...The price is another thing. It is priced reasonably so I can move the tank to the sun light without fearing water change costs." Read more

"Good product and price" Read more

9 customers mention9 positive0 negative

Customers find the aquarium pond water treatment easy to use. They mention that the instructions are easy to follow, and the product is hassle-free and doesn't require any complex procedures. The measuring cup is also very easy to operate, and it is great for a quick fix.

"...Its effectiveness, ease of use, and ability to maintain a safe and healthy environment for my fish have made it an indispensable addition to my..." Read more

"It is great for a quick fix! But let’s face it- ultimately if your tank is too far off, parameters need to be adjusted." Read more

"easy to use. great if you have ammonia in your tank - get it out with this product" Read more

"Product works well easy Joseph using the cap. Easy to follow instructions" Read more

5 customers mention5 positive0 negative

Customers are satisfied with the quickness of the product. They mention that it works well and removes the chlorine quickly. It also helps resolve the problem quickly, and the product itself is worth the wait.

"...But rest assured, the product itself is worth the wait." Read more

"Easy to use and removes the chlorineResults are almost instant" Read more

"...in awhile due to increases in nitrates/ammonia but this helps resolve the problem quickly! Big bottle too for the price!" Read more

"Works well and quickly" Read more

4 customers mention4 positive0 negative

Customers are satisfied with the appearance of the aquarium pond water treatment. They mention that it's really nice and sweet.

"...a new large tank and my over 8 year old tetras are back home and looking real good. API Start rite is a different story...." Read more

"...Great price. Cant beat it anywhere. Fast shipping. Wonderful. Just fabulous." Read more

"Arrived without a cap. Real nice." Read more

"sweet!..." Read more

59 customers mention37 positive22 negative

Customers are mixed about the ammonia. Some mention that it helps reduce the potential damage ammonium could cause, it works well to reduce the ammona, and it keeps ammoniu at a stable level. It provides excellent protection for fish from ammoniar poisoning, and works great for locking the amona. However, some say that the problem was persistent ammonius even after a 25 or 50 % water change.

"...Its effectiveness, ease of use, and ability to maintain a safe and healthy environment for my fish have made it an indispensable addition to my..." Read more

"This is very good for dealing with ammonia. Yet i just tried another brand that was half the price and works even better...." Read more

"...You can't just put ammo lock in and forget about it though. Ammonia builds upon ammonia, so you still have to do water changes to get it all out of..." Read more

"...It made the water safe until a water change was possible. I HIGHLY RECOMMEND API." Read more

12 customers mention3 positive9 negative

Customers are not happy with the cloudiness of the water treatment. They mention that it turns the water cloudy and is very toxic to aquatic pets. Some customers also mention that the product leaves a little bit of white haze in the water and that it makes fish's eyes cloudy.

"...I have used this product two times and both times my water was super cloudy the next day and ammonia levels had spiked to 4PPM overnight!..." Read more

"...builds up, for instance due to excessive feeding, it turns the water a bit grayish. But then this clears up as the ammonia slowly unlocks...." Read more

"...It doesn't cloud the water or create any unsightly residue, ensuring that my tank remains clear and pristine...." Read more

"...I added it according to the directions and with in 2 hours my water clouded up and the tank smelled like an ammona bottle I had to do 2 water..." Read more

Works quickly
5 Stars
Works quickly
I have a 2 gallon tank with a Betta and snail. Some plants and a strong enough filter. I don’t think I over feed and clean up leftovers before turning the filter back on. I removed any dead or rotting plant pieces and did a partial water change. I used non chlorinated tap water. The next day the ammonia levels on detector were worse. I swapped out a little bit more water and expected a change. Nothing! I ordered this product it came next day. I was so concerned because directions are for a ratio of a ten gallon tank. My brain does not work well first thing in the morning and I was not going to start mixing up 10 gallons of water either. If you’re in the same boat, fear not. I’ve got you covered. I have included in pictures that the cap has measurements for 1,5 and 10 milliliters. 1ml. of solution per 2 gallons of water, 5ml. Solution per 10 gallons of water and10ml. Solution per 20 gallons of water. Basically whatever gallons your tank is, divide in half and that number is the amount of ml. needed. Ammonia levels were reduced in minutes.
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Top reviews from the United States

Reviewed in the United States on August 25, 2023
14 people found this helpful
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Reviewed in the United States on March 14, 2023
18 people found this helpful
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Reviewed in the United States on January 21, 2023
Customer image
5.0 out of 5 stars Works quickly
Reviewed in the United States on January 21, 2023
I have a 2 gallon tank with a Betta and snail. Some plants and a strong enough filter. I don’t think I over feed and clean up leftovers before turning the filter back on. I removed any dead or rotting plant pieces and did a partial water change. I used non chlorinated tap water. The next day the ammonia levels on detector were worse. I swapped out a little bit more water and expected a change. Nothing! I ordered this product it came next day. I was so concerned because directions are for a ratio of a ten gallon tank. My brain does not work well first thing in the morning and I was not going to start mixing up 10 gallons of water either. If you’re in the same boat, fear not. I’ve got you covered. I have included in pictures that the cap has measurements for 1,5 and 10 milliliters.
1ml. of solution per 2 gallons of water, 5ml. Solution per 10 gallons of water and
10ml. Solution per 20 gallons of water. Basically whatever gallons your tank is, divide in half and that number is the amount of ml. needed. Ammonia levels were reduced in minutes.
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9 people found this helpful
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Reviewed in the United States on February 2, 2023
One person found this helpful
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Reviewed in the United States on February 16, 2024
Reviewed in the United States on November 25, 2023
Reviewed in the United States on May 27, 2023
2 people found this helpful
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Reviewed in the United States on March 7, 2024

Top reviews from other countries

yoges-thambi
5.0 out of 5 stars API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle
Reviewed in Canada on December 31, 2022
Raj Pakhare
5.0 out of 5 stars Outstanding product
Reviewed in India on January 9, 2023
One person found this helpful
Report
danielle coley
5.0 out of 5 stars It does the job
Reviewed in the United Kingdom on October 23, 2023
Kindle Customer
5.0 out of 5 stars This is a very effective product
Reviewed in India on September 30, 2022
Steve
5.0 out of 5 stars Excellent product.
Reviewed in Canada on September 17, 2016
4 people found this helpful
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