1-800-566-3474

API Freshwater/Saltwater Nitrate Test Kit, Test kit of 90 tests

Read 12 Reviews Write a Review

In Stock: Buy now and your order will ship the next business day

This item is in stock in our East and West Coast warehouses

$9.99 $11.99
You Save: $2.00 (16%)


AP3129

Add to Wishlist

SHIPS FREE!

Aquarium Pharmaceuticals, API, MARS Fishcare

Measures nitrate levels in both fresh & saltwater aquariums. Tests nitrate levels from 0 to 160 ppm. 90 tests per kit.

Freshwater/Saltwater Nitrate Test Instructions:

Why Test For Nitrate?
Nitrate (NO3-) is produced in the aquarium by the biological filter. Beneficial bacteria in the biological filter convert toxic ammonia and nitrite into nitrate. A high nitrate level indicates a build-up of fish waste and organic compounds, resulting in poor water quality and contributing to the likelihood of fish disease. Excessive nitrate also provides a nitrogen source that can stimulate algal blooms. In the opinion of many aquarists, maintaining a low nitrate level improves the health of fish and invertebrates.

Testing Tips:
This test kit reads total nitrate (NO3-) level in parts per million (ppm) which are equivalent to milligrams per liter (mg/L) from 0 ppm to 160 ppm, in either fresh or saltwater aquariums. This kit includes two Nitrate Test Color Charts — one for freshwater aquariums, and one for saltwater aquariums — so be sure to use the correct chart for your type of aquarium when interpreting test results. The Freshwater Nitrate Test Color Chart is the appropriate chart to use for testing freshwater aquariums to which salt has been added. This test kit measures nitrate as nitrate ion or “total nitrate.” Other nitrate test kits that measure “nitrate-nitrogen” (NO3-N) will give readings 4.4 times LESS than this test kit.

Directions for Testing Nitrate:

  • Read thoroughly before testing. Do not allow Test Solutions to get into aquarium.
  • To remove childproof safety cap: With one hand, push red tab left with thumb while unscrewing cap with free hand.
  • Fill a clean test tube with 5 ml of water to be tested (to the line on the tube).
  • Add 10 drops from Nitrate Test Solution Bottle # 1, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops added to the water sample.
  • Cap the test tube and invert tube several times to mix solution. Do not hold finger over the open end of the tube, as this may affect test results.
  • Vigorously shake the Nitrate Test Solution Bottle # 2 for at least 30 seconds. This step is extremely important to insure accuracy of test results.
  • Now add 10 drops from Nitrate Test Solution Bottle #2, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops to the water sample.
  • Cap the test tube and shake vigorously for one minute. This step is extremely important to insure accuracy of test results.
  • Wait five minutes for the color to develop.
  • Read the test results by matching the color of the solution against those on the Nitrate Test Color Chart. The tube should be viewed against the white area beside the color chart. Color comparisons are best made in a well-lit area. The closest match indicates the ppm (mg/L) of nitrate in the water sample. Rinse the test tube with clean water after each use.
What The Test Results Mean:
In new freshwater and saltwater aquariums the nitrate level will gradually climb as the biological filter becomes established. A nitrate level of 40 ppm (mg/L) or less is recommended for freshwater aquariums. Many marine aquarists prefer to keep nitrate levels as low as possible, especially when keeping invertebrates.

Monitoring Nitrate Levels:
Regular testing for nitrate is an essential part of routine aquarium maintenance. Aquarium water should be tested for nitrate once a week to make sure the nitrate does not reach an undesirable level.

Reducing Nitrate in the Aquarium:

In Freshwater
Use Aquarium Pharmaceuticals Nitra-Zorb™ to remove nitrate from freshwater aquariums. Nitra-Zorb is a rechargeable filtration material that removes nitrate from freshwater. Making partial water changes can also help reduce the nitrate level, especially if the initial nitrate level is very high. However, because many tap water supplies contain nitrate, it can be difficult to lower nitrate levels by this method. Aquarium Pharmaceuticals Tap Water Purifier will remove all pollutants, including nitrate, from tap water, making water changes effective. The Tap Water Purifier makes any tap water perfect aquarium water.

In Saltwater
Partial water changes are the easiest way to lower the nitrate in a saltwater aquarium. Keep in mind, however, that the biological filter constantly produces nitrate. Also, because many tap water supplies contain nitrate, it can be difficult to lower nitrate levels by this method. Aquarium Pharmaceuticals Tap Water Purifier will remove all pollutants, including nitrate, from the tap water— making water changes effective. The Tap Water Purifier makes any tap water perfect aquarium water.

DANGER:
  • HARMFUL Xn & CORROSIVE C
  • Bottle #1 contains 41% Hydrochloric acid
  • Causes burns
  • Irritating to respiratory system
  • Harmful if swallowed
  • Keep locked up and out of the reach of children
  • In case of contact with eyes or skin, rinse immediately with plenty of water (at least 15 minutes) and seek medical advice immediately
  • Remove contaminated clothing
  • Wear suitable gloves and eye/face protection
  • In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).



Manufacturer Info

Aquarium Pharmaceuticals Aquarium Supplies
Aquarium Pharmaceuticals (API) has been helping people take good care of ornamental fish for over 40 years. Their research and development scientists have advanced the care of fish with all-natural medications, stable bacteria for biological filtration, one-bottle test kits, consumer-friendly dosing caps and much more. They’ve received over 25 global patents for their breakthrough innovations in the aquatics industry. And they continue to look for ways to improve the fishkeeping experience for hobbyists. Research. Experience. Dedication to scientific, quality treatment for healthy fish. It’s what makes API the first choice of aquarium owners. API manufactures and sells hundreds of products across many different product categories, including aquarium and pond treatments, aquarium equipment, aquariums and fish nutrition.

12 Reviews

KAREN BUCHANAN from MUNCIE, IN UNITED STATES

01/13/2016

Experience Level: Intermediate

Instruction sheet incomplete?

The test works fine, I guess, but I'm wondering where the information about the test giving readings 4.4 times higher than other tests came from. I first read about this just today from various aquarium forums and this information does not seem to be supplied by API themselves. Someone said the information was "right there in black and white" on the instruction sheet, but it was nowhere to be found on the instruction sheet I received with the kit I bought and the online PDF supplied by the API site doesn't have it either. Maybe they have changed the printed instruction recently, but the kit I bought is fairly new. In any case, perhaps the test's high readings explain why my nitrates appeared to be high while my plants seemed to be exhibiting some possible signs of nitrogen deficiency.

Was this review helpful?

MATT HERDKLOTZ from BANNER ELK, NC UNITED STATES

10/10/2012

Experience Level: Intermediate

Test Kits

Great test kits for the money!

Was this review helpful?

Brad from Clinton Township. MI

10/09/2012

Experience Level: Intermediate

Pleased

This test kit is easy to use, works great and the price is right!

Was this review helpful?

BENJAMIN from

01/21/2012

Experience Level: Beginner

It works

Just as the title states, it works. Some times it is hard to compare to the color chart

Was this review helpful?

KBB from MN

03/21/2011

Experience Level: Expert

Color chart is not distinct

I have used this test for a long time and I have never been able to see the difference between the low levels of nitrates. My fish have suffered long enough. Time to try something else.

3 out of 4 found this review helpful

Was this review helpful?

Tony from BALLWIN, MO UNITED STATES

01/20/2011

Experience Level: Expert

API Saltwater Nitrate Test

I have used a couple of different saltwater nitrate test kits. This one is the easiest to use with only 2 chemicals. The only issue that I have with it is that I can't see any color difference on the color card between the 5.0ppm color and the 10.0ppm color. However, since my goal is 0.0ppm for my reef the bright yellow color is easy to see.

0 out of 1 found this review helpful

Was this review helpful?

DENISE ZEDIALIS from SAINT LOUIS, MO UNITED STATES

04/23/2009

Experience Level: Expert

Test Kit

I would definitely recommend this to anyone! It is easy to use and inexpensive to have. It beats driving to the fish store. I have seahorses and need to test nitrates often so this simple test is great. It was recommended to me be the SESAL forum and they were right!

1 out of 1 found this review helpful

Was this review helpful?

DONI MARIE from HILLSBOROUGH, NC UNITED STATES

01/27/2009

Experience Level: Expert

Very Good

When used as directed, this product works very well. I use this API kit weekly on my reef tank and 300 gal clownfish growout system. I do periodically retest using my Salifert (just to double check results). I have found the API to be user friendly and accurate. It is important that you read the instructions carefully and are sure to shake the #2 reagent prior to use since it settles. You should also ensure the expiration date has not passed

1 out of 2 found this review helpful

Was this review helpful?

Mike from

01/09/2009

Experience Level: Intermediate

Great kit

I've been using this kit after switching from Salifert. Kit is easy to use and is very accurate. All you do is add 5ml of your water, then 10 drops of one solution. Mix. Add 10 drops of another solution, mix, then wait 5 mins. Only thing that would be a great improvement would be if you didn't have to wait the 5 mins for the final result. I greatly prefer this kit over the Salifert though.

Was this review helpful?

Mike from SAN FRANCISCO, CA UNITED STATE

06/19/2008

Experience Level: Expert

API Nitrate Test Kit

I give this test a high score, not because it's the most accurate test out there, but because for the price it does what it needs to. API makes very inexpensive test kits, and might not be the most accurate ones out there, but if you don't need to know what your nitrates down to the 0.1 then this is the perfect kit for you. If you simply need a way to see if you have a problem at all this kit is for you. Yes there are people who need to know if they have 0.5ppm of nitrates and that's fine, they can buy the other more expensive kits. However all I really care about is first, do I have a big nitrate problem? Then I want to know roughly how many. When I test mine I see a yellowish color (zero), then I'm happy. 2 regent formula, shake between mixing, and wait 5 minutes, it can't be any more simple

1 out of 1 found this review helpful

Was this review helpful?

Accessories for API Freshwater/Saltwater Nitrate Test Kit, Test kit of 90 tests


Similar Items