Kordon AmQuel Plus Aquarium Water Conditioner – Instantly Detoxifies Ammonia, Nitrite, Nitrate, and Chlorine Remover for Freshwater & Saltwater Aquariums, 16 Ounces
$10.39
Price: $10.39
(as of Oct 12, 2025 21:50:48 UTC – Details)
Unique water conditioner providing actions needed for safe aquarium and pond keeping for fishes and invertebrates. Nontoxic and saves on the need for as many water changes as would otherwise be required. Removes/detoxifies all of the kinds of toxic nitrogen compounds in the water.
Is Discontinued By Manufacturer : No
Product Dimensions : 2.25 x 2.25 x 8.5 inches; 1 Pounds
Item model number : MODEL-33456
Department : Unisex-Adult
Date First Available : June 20, 2004
Manufacturer : KORDON
ASIN : B006OONEOA
Best Sellers Rank: #16,498 in Pet Supplies (See Top 100 in Pet Supplies) #135 in Aquarium Water Treatments
Customer Reviews: 4.6 4.6 out of 5 stars 1,153 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Kordon amquel plus 16oz
Safe to use with other water conditioners and organic herbal fish medications
Removes/detoxifies toxic
Customers say
Customers find the water conditioner effective at reducing ammonia levels and appreciate its excellent price. The product receives positive feedback for its safety, with no harm reported to fish, and one customer notes it works within 5 minutes in the tank. While some customers report their ammonia levels dropping to zero, others mention it can kill pH levels and cause drops in oxygen. Customers disagree on the product’s impact on fish health, with some reporting their fish are fine while others experienced deaths. The product’s lifespan and dosage instructions also receive mixed reviews.
13 reviews for Kordon AmQuel Plus Aquarium Water Conditioner – Instantly Detoxifies Ammonia, Nitrite, Nitrate, and Chlorine Remover for Freshwater & Saltwater Aquariums, 16 Ounces
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$10.39
jennifer –
Good
Seemed to do the trick will buy again when needed
Apexwolf –
Works better than prime , no smell
So I’ve been useing this product for few weeks , It has same benefits as secham prime minus the smell and last way way longer than prime , I am able to have my fish go through a cycle ie high nitrite and ammonia levels and they are happy as a camper . I didn’t get this product to do that but a tank cycle crashed , I was tired of rotten egg smell and only 2 day guarantee safety, so I bought this . Within 1 min of adding this product my fish went to acting normal , one min previously they were all sluggish and looking rough with 1 ppm nitrite spike . As you can sew this is a community 20 gallon tank . With glowfish pristilas , cory cat , betta females , mollys and ,neons ( not over crowded) just right . One fish had babies I didn’t realize until I saw 2 at the top ( black mollys ) well only 2 were seen , so I am assuming many got eaten or taken into the Hob filter and cause a ammonia then nitrite spike . This you can add and if cycle crashes its protects your fish back through a cycle . Highly recommend
Breana Eason –
Too good to be true! Love love love!!
This stuff is worth every penny. My Axolotl tank parameters are always 100% on point since I’ve started using this stuff. Not once have I needed to adjust anything! Get it, it’s worth it!
Amber balch –
Best cleaner
I’ve delt with fish tanks 15+ years and this is one of the best cleaners to use for fresh water. Amazon got it to me within a few hours to help fix my fish tank before I’d have to restart the whole thing. Thank you for the good customer service all the way around.
Amazon Customer –
A Good product but use with caution as it drops PH and oxygen.
I’ve used this product on my 55g Fresh and a 10g fresh water aquarium. It does indeed do what it promises on the label and did indeed lower my nitrates and in my 10g aquarium my amonnia as well.My measured nitrate drop 10-20 PPM in my 55g freshwater after 2 days.However, I would excersise caution based on other observations in both of my aquariums. In both of my aquariums, I observed a drop in PH to the lower side of .3 to .6 within one day.The use of PH buffers to raise the PH and keep it stable is highly recommended.It also drops the oxygen level dramatically for at least a day so having an air stone or bubbler is an absolute must. DO NOT dose your tank without increasing the oxygen level via an air stone or youmay lose your livestock. After a couple of days the oxygen level seems to rise again.The product label does tell you to increase your oxygen levels when dosing.
Donald Ledbetter –
Amquel works well to reduce ammonia.
Amquel works well to reduce ammonia in my bait tank.
Bamboo Dan –
Does the job removing all traces of Ammonia, Nitrite, & Nitrate!
My 240 gallon acrylic tank was cycling, the ammonia stayed high overlong, even the plants were complaining. Added Amquel +, saw the ammonia go down within a half-hour. Ditto with nitrites. Nitrates have not gone above zero since adding. I’m pretty impressed … and that doesn’t happen easily.NOW … here’s the rub: Kordon claims this doesn’t interfere with cycling a tank, just that it binds ammonia, nitrite, and nitrate … I guess like chemical sequestration. They imply it doesn’t come back into solution, but they do say the nitrogen cycle bacteria can still break stuff down. Also, there doesn’t seem to be any consensus, either from the manufacturer or consumers, on how often you can/should add more, or if there is some toxicity level. Kind of vague. If you plan repeat doses, I’d tread carefully, and only base additional doses on testing. Also, to be able to get an accurate reading, there are certain reagent systems that are invalid if you use Amquel+ …. but the readily available API Master Test Kit does the job nicely.
kathrine saucier –
Ok
Works as stated.
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Ian C. –
Got this because Iâd seen some amazing reviews. I was a bit nervous about using it after seeing a few terrible reviews too. I followed the instructions to the letter. My nitrates were sitting around the 80ppm mark. No chance of survival for any invertebrates. Even doing big water changes I had been struggling to regain control. It has taken a couple of weeks of using this and two water changes. I now have the nitrates down to 10ppm. Almost there. I have tried other products that havenât helped at all. This stuff is brilliant. My fish are all healthy. There are no signs of ill effect at all. My unwanted algae has almost gone and my goby is more active. I will continue using this and be ordering more. I strongly recommend this product if you are struggling with nitrates and literally throwing money down the drain with water changes that have little effect. Regain control with this stuff.Update… just checked my nitrates again and they now read 0ppm. Pretty much the only time they have ever been at zero.Update number two.Well, I got lazy with water changes and let everything get out of control. I lost fish and got told off by the wifey!A bit of tlc and using this stuff and weâre back to zero nitrates again. This stuff is just amazing and can help people like me that get lazy from time to time. I would say itâs worth having for those just in a case moments.
ERSOV G. –
Câest assez efficace
TheGamer –
Iâve been using this product for sometime now and it removes ammonia within hours. Itâs a shame that it has to come all the way from the US to the Uk and there isnât a more local supplier. Recommended.
chrissa35 –
I originally use Prime. However, I donât think itâs very effective in removing the ammonia. My tap water contains 1ppm ammonia ( Chloramine) so I need better solution.I use both API master kit and Monitor Ammonia Test kit to test ammonia after using Amquel Plus and Novaplus together.You could see it becomes yellow (0 ppm) from green ( 1ppm).I used 15 ml of 30 gallon tank.Since I donât have livestock so I donât know any side effects to fish. But so far it meets my goal.I like it ! Also recommend Monitor test kit as the color is more distinguishable.