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API

API Water Test Kit

  • Based on 24,427 reviews
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Availability: In Stock.
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Arrives Saturday, May 25
Order within 20 hours and 4 minutes
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Style: Freshwater


Features

  • Contains one (1) API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, including 7 bottles of testing solutions, 1 color card and 4 glass tubes with cap
  • Helps monitor water quality and prevent invisible water problems that can be harmful to fish and cause fish loss
  • Accurately monitors 5 most vital water parameters levels in freshwater aquariums: pH, high range pH, ammonia, nitrite, nitrate
  • Designed for use in freshwater aquariums only
  • Use for weekly monitoring and when water or fish problems appear

Description

Most water problems are invisible to the eye. Quickly measure and modify the six aquarium levels that are most important to the health of your freshwater fish with the API FRESHWATER MASTER TEST KIT. To stay healthy and thrive, fish need properly balanced levels of ammonia, pH, high range pH, nitrite and nitrate. These levels can change rapidly and create harmful conditions when fish waste, uneaten food or other organic matter accumulate, or when untreated water is added. If left uncorrected, all of these can be harmful or even fatal to fish, with consequences such as reduction of oxygen, increase in stress and higher risk of disease. The API FRESHWATER MASTER TEST KIT measures these six parameters with scientific accuracy and provides professional results. It comes with four glass test tubes, a holding tray, test tube rack and computer calibrated, laminated color card. Just fill the test tubes, add the test drops and compare results to the color card. Then follow the recommendations on the card if action is required. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 9.13 x 3.5 x 4.63 inches; 1.15 Pounds


Item model number ‏ : ‎ 34


Date First Available ‏ : ‎ June 20, 2004


Manufacturer ‏ : ‎ Mars Fishcare


Country of Origin ‏ : ‎ USA


Domestic Shipping: Item can be shipped within U.S. International Shipping This item is not eligible for international shipping. Learn More


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Accurate test that takes around 10 minutes to do
Style: Freshwater
The media could not be loaded. I recently bought my first fish tank, Tetra ColorFusion 20 Gallon Aquarium Kit , and quickly learnt about the importance of testing the water. In case you do not know, a new fish tank needs to go through a cycle where the waste becomes ammonia (dangerous for fish); then, bacteria will grow and convert it into nitrite (also poisonous); and then additional bacteria will grow and convert it into nitrate (not dangerous). To ensure that your fish survive in the long term, you need to monitor these three parameters and make sure that the ammonia and nitrite do not remain high for too long. I decided to buy this kit so I can do tests every two days, as I read that it is more accurate and inexpensive than using strips. Overall, I am very happy with it. Every test I do takes just a few drops. The manufacturer claims 800+ tests, but be careful that is the total number (adding all the different tests together). If you look at just one type of test, like nitrate, the one that requires the most drops, you will be able to do 50-60 tests (as another reviewer has calculated). Most of the tests are very easy to do, with the exception of nitrate, that requires shaking the bottle for 30 seconds and the water sample for 1 minute, and it is somehow tiring. I found running all the tests took me around 10 minutes. I have taken a video so you can get an idea of the "effort involved". Overall, I am very happy with this kit. Over the last few days I have seen the ammonia climbing, then nitrite and now nitrate, so I can perfectly understand what is going on in my tank! ... show more
Reviewed in the United States on January 21, 2017 by Ryott

  • I would give it 0 stars if i could.
Style: Freshwater
It suppose to be a quantity test, but its not. I bought it when i started to fight some serious algae problem in one of my planted tanks. For quite some time here was no need to test. I do water changes regularly, plants are growing, fish do fine. But now I have a problem, and was looking for a sours of it. I bought this kit and it tells me that Nitrate level in my tank is up to the sky. More often water change didn't help. I checked my RO water and Nitrate was high there too. I bought a new membrane - same problem. Since there was other people complaining about same filters, I decided that filter is bad and changed the whole system.($200) That one part of the story. Of course I looked at my tub water. Nitrates up to the sky, to the level when water is non drinkable - 80 ppm. I would think that test kit is bad, but bottled water and water from my new ROsystem was reading 0 as it should. So I contacted my water district, made them come and collect samples. They called me back and send me a lab report. 6.5 ppm which is higher than average, yet its withing the standards and there is a huge difference between 6 and 80. To be sure I send my own samples to the accredited lab (not the nearest fish store,) and got the same 6 ppm . That test cost me $90. SO. This test is telling you if there are some Nitrate in the water, but not able to tell how much with any kind of accuracy. That makes this test completely useless. I don't need test to tell me "more than 0 nitrate", i know it is more than 0, it's impossible to keep it at complete 0. I need test to tell me what is my Nitrate level. And this is what this test is absolutely not able to do. waste of my money. more than that. $21 kit itself (not illegible for return). $212 for a new filters (now I am not sure that my old filter really was so bad) and $90 for the lab test. $323 total. Not to mention all the hassle of dealing with water district, delivering samples to the lab, and, of course, shearing my concerns with friends and neighbors. Dear API, thank you very very much. I think I will never forget this. Your former customer. ... show more
Reviewed in the United States on March 4, 2019 by asd

  • Economical.
Style: Freshwater
I am new to the world of aquariums, but I learned to use this kit quickly and frequently. You just need to be capable of and willing to follow some basic directions, shake vigorously, set a timer for 5 minutes and check the waterproof color guide sheet. I've already lost one test tube cap, most likely due to my cats playing with them. If you accidentally let the test solution sit overnight in the test tube it can stain the inside, requiring you to scrub it out, so don't be lazy like me.:-/ I use plastic disposable pipettes to collect the water sample and get the level right at the line on the test tube, and I've noticed my results are different depending if I skim water off the top or sample it directly above the sand. My tank requires the high range pH of this kit but I still use the regular pH liquid for checking water I'm adding to the tank. Also it's nice to have the little test tube holder holes in the container, but the tubes do stand on their own due to the flat bottom. The price is great for all these essential tests! (Sorry I'm missing a bottle and 2 test tubes in the pic.) ... show more
Reviewed in the United States on January 13, 2016 by SamSquanch

  • Keeps my water quality in check.
Style: Freshwater
It helps get you in the ballpark with your water perimeters. The nitrate test is a little finicky as most users will agree. No fault of the kit, just the nature of the solution in bottle #2. You really need to shake it extremely well each time or risk fouling up the entire bottle. The rest of the test in the kit are much easier to use. Just read the instructions for each test and be sure to hold the vials against the white background when comparing them to color chart. The color of solution will look a bit more pale when moving the vial away from the card. This is not the right way to use this test, as it took me awhile to realize this. It also helps to be in a well lit room, preferably with "cool" lighting when checking the samples. Besides this kit, I also use the phosphate and KH/GH test kits from API with the same ease of use. While none of them will give you exact levels, they are close enough for a majority of us. ... show more
Reviewed in the United States on January 10, 2018 by ☆M☆

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