Editor's Choice - Our Favorite Fluval Aquarium Test Kits

1. Fluval CO2 Indicator Kit

User Ratings: 61 7

Fluval A7551 First Impressions

"Bought the 100 Count."

And if it was, please click on the helpful button below. Very good instructions and a comparison color chart. I take every precaution about the chlorine, and trust the strips for everything else. They show results, what is safe& not safe and what to do if not safe. I wish there were a simpler accurate test for it. I don't know so much about how precise these are. If this review was helpful, please click the helpful button!

  • Fluval CO2 Indicator Kit
  • Monitors levels of CO2 in aquariums
  • Provides accurate dosing of CO2
  • Ensures fish and plants live in a healthy environment
  • Manufacture: Fluval
  • Product Dimensions: 1.8 x 4 x 5.5 inches; 1.6 Ounces
  • Editor's Impressions Of The Fluval A7551
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Fluval A7551 Final Thoughts

"Maybe I have bad bottle."

The kH pad sometimes has the same problem as well. They test pretty accurate when run against my chemical tests. They show results, what is safe& not safe and what to do if not safe. This kit is extremely accurate and very well designed for convenient use and storage. Wasn't labeled that way in the descriptor. This is a good kit so much more accurate and easy to figure out how to use it. Also, I'd avoid Tetra's strips to be honest- the reviews speak for themselves.

Overall Score
4.2


(175 Points)

2. Seachem Reef Status Magnesium Test Kit

User Ratings: 32 18

Seachem 116092401 First Impressions

"He perked right up."

Tetra has always done that and I will continue to use their products. So did another water change today and now I have happy fish. Every test I do takes just a few drops. Some of the readings develop better than others. I mean some people would never do a water test at all. So did another water change today and now I have happy fish. Easy to use, a good quantity and quality for the price.

  • Seachem Reef Status Magnesium Test Kit
  • 75 test
  • For saltwater use only
  • Unique indicator
  • Four tests in one
  • Manufacture: Seachem Laboratories, Inc.
  • Product Dimensions: 8.9 x 6.3 x 3.4 inches; 10.56 Ounces
  • Editor's Impressions Of The Seachem 116092401
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Seachem 116092401 Final Thoughts

"This part is very easy."

I tested the water and the nitrates and the ph were pretty high still. Just be careful, after all these are chemicals. If you're out for speed, but with less accuracy get the dip tests. If you keep freshwater fish, you will need this test kit. If your lighting isn't right the colors will be very off. If I had a complaint, I wish the color legend was printed on the bottle. Probably won't buy again because of the bleeding issues.

Overall Score
3.3


(25 Points)

3. Advocate Blood Kit PetTest - Pet Glucose Monitoring System

User Ratings: 75 8

Advocate First Impressions

"See my attached photos."

No issues so far, test strips work well. It helps get you in the ballpark with your water perimeters. I found running all the tests took me around 10 minutes. I've already lost one test tube cap, most likely due to my cats playing with them. I'm still not sure about the chlorine site. First few strips I used gave an accurate ready. If I had a complaint, I wish the color legend was printed on the bottle.

  • Advocate Blood Kit PetTest - Pet Glucose Monitoring System
  • Kit Monitoring Glucose Levels Calibrated for Dogs and Cats
  • One-Button Switch Between Dogs & Cats
  • Smallest Sample Size Needed (0.3µL)
  • Test Results in Five (5) Seconds, Extremely Easy to Use
  • Kit Includes: 1 PetTest Blood Glucose Meter. 25 Test Strips. 25 Lancets. 1 Carrying Case. 1 Control Solution. 1 Lancing Device. 2 Batteries AAA. 1 PetTest Owner's Manual. 1 PetTest Quick Reference Guide. 1 PetTest DVD.
  • Manufacture: Advocate
  • Product Dimensions: 2.5 x 4.9 x 6.6 inches; 9.59 Ounces
  • Batteries: 2 AAA batteries required. (included)
  • Editor's Impressions Of The Advocate
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Advocate Final Thoughts

"Was working great."

It does not test ammonia but that's clear in the description and bottle. It's quick and easy and can give you an alert if something may be going on. Just be careful, after all these are chemicals. I've already lost one test tube cap, most likely due to my cats playing with them. Every test I do takes just a few drops. My tap water actually was really green and was a very close match to the 1. Some of the readings develop better than others.

Overall Score
4.5


(20 Points)

4. Tetra EasyStrips Complete Aquarium Test Kit

User Ratings: 73 4

Tetra 19544 First Impressions

"Would buy again for sure!"

But after last night these are a must have for me. I mean some people would never do a water test at all. Before, I brought water into a pet store, but kept seeing no signs of improvement. Not really sure if there is a way to fix that though. It does'not' have the same accuracy but it’s very close. I would not use it solely for checking nitrate and nitrites. The rest of the test in the kit are much easier to use.

  • Tetra EasyStrips Complete Aquarium Test Kit
  • ALL-IN-ONE TESTING KIT: Everything you need to test your aquarium water.
  • 7 DIFFERENT TESTS WITH 1 STRIP: Just one test monitors ammonia, nitrates, nitrites, water hardness, chlorine, alkalinity and pH levels.
  • VERSATILE: Can be used in both freshwater and saltwater aquariums.
  • CONVENIENT: Just dip into water, wait 60 seconds and read results.
  • USAGE: Use weekly to monitor aquarium water, after water changes or when adding new fish.
  • Manufacture: Tetra
  • Product Dimensions: 6 x 4 x 1.13 inches; 2.4 Ounces
  • Editor's Impressions Of The Tetra 19544
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Tetra 19544 Final Thoughts

"Great test kit."

If you're looking for a quick-hit on a range of water quality these are the answer. I like API products and find them the most accurate. Here's Tetra's strips if you're curious. Nice that so many things are tested with one dip in the water. It does not test ammonia but that's clear in the description and bottle. I wish there were a simpler accurate test for it. If you want accurate pH get the API liquid test that includes pH and high pH.

Overall Score
4.5


(680 Points)

5. Sera gH-Test 15 ml, 0.5 fl.oz. Aquarium Test Kits

User Ratings: 80 2

Sera 4110 First Impressions

"Happy tank!"

I set up a bunch of 20 gallon tanks for fry and stuff. It is easy to use and accurate enough. I have not found that to be true for myself. These have worked to keep my fish safe and healthy. I like API products and find them the most accurate. This test kit is easy to use and the results are easy to read. While using these weirder chemicals, it worries me a little bit.

  • Sera gH-Test 15 ml, 0.5 fl.oz. Aquarium Test Kits
  • Makes it easy to monitor the total hardness
  • Very accurate
  • Easy to read
  • Manufacture: Sera North America, Inc.
  • Product Dimensions: 1.57 x 3.54 x 5.51 inches; 1.12 Ounces
  • Editor's Impressions Of The Sera 4110
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Sera 4110 Final Thoughts

"FIVE STARS for sure!"

If your lighting isn't right the colors will be very off. I would not use it solely for checking nitrate and nitrites. The nitrate test is a little finicky as most users will agree. My tap water actually was really green and was a very close match to the 1. I find that the accuracy is wrong in the sense it's better than it reads. It was also kinda hard to get exactly 5ml Into the tubes. But after last night these are a must have for me.

Overall Score
4.7


(253 Points)

6. Red Sea Fish Pharm ARE21426 Reagent Phosphate Pro Refill Kit for Aquarium, 100 Tests

User Ratings: 44 9

Red Sea Fish Pharm Ltd. 306018 First Impressions

"Bought the 100 Count."

I have a freshwater tank that includes some delicate invertebrates. It does'not' have the same accuracy but it’s very close. I have a freshwater tank that includes some delicate invertebrates. Tank lids, water additives and more have seen the same effect. And if it was, please click on the helpful button below. I will now test my water periodically to make sure everything is ok. First few strips I used gave an accurate ready.

  • Red Sea Fish Pharm ARE21426 Reagent Phosphate Pro Refill Kit for Aquarium, 100 Tests
  • Phosphate Pro refill kit is an advanced colorimetric test with comparator
  • Measuring the level of phosphate in reef aquarium to an exceptionally high accuracy of 0. 02ppm PO4
  • This test kit, when used in conjunction with the nitrate Pro test kit, enables accurate dosing of NO3: po4-x (biological nitrate and Phosphate reducer)
  • This kit includes a durable, chemical resistant plastic case, analytical grade glass vials
  • Includes material for up to 100 tests
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 6 x 4 x 2.5 inches; 4 Ounces
  • Editor's Impressions Of The Red Sea Fish Pharm Ltd. 306018
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Red Sea Fish Pharm Ltd. 306018 Final Thoughts

"Good value."

I cut each strip down the middle so that I have even more tests. I'm still not sure about the chlorine site. This test kit is easy to use and the results are easy to read. Some of the readings develop better than others. The stripa are easy to use, clear instructions and I gor results in seconds. It's difficult to tell if all the test sites on the strip are accurate. I have some pretty lousy water where I live.

Overall Score
3.9


(11 Points)

7. JNW Direct Pond Test Strips 7 in 1 - Test pH, Chlorine, Nitrate, Nitrite, Hardness and More, Accurat...

User Ratings: 63

JNW Direct First Impressions

"It's very easy to do."

It looks to have the slightest green tinge but is not as green as the 0. This test kit is easy to use and the results are easy to read. It's difficult to tell if all the test sites on the strip are accurate. Every test I do takes just a few drops. It's difficult to tell if all the test sites on the strip are accurate. I used to always take a water sample to the pet store and they would teat it. Probably won't buy again because of the bleeding issues.

  • JNW Direct Pond Test Strips 7 in 1 - Test pH, Chlorine, Nitrate, Nitrite, Hardness and More, Accurate Fish Pond Water Testing, Free App & Ebook Included, 50 Count
  • THE ULTIMATE AT HOME TESTING KIT for your pond. Tests for 7 parameters: Total Hardness, Free Chlorine, Nitrite, Nitrate, pH, Total Alkalinity & KH / Carbonate
  • EXTREMELY EASY TO USE pond water test strips, Instant reliable results with simple and clear instructions. Simply dip and compare with large color chart on bottle. Ideal range marked on bottle
  • BONUS FREE MOBILE APP INCLUDED - Record, track and monitor your pond test strip results with ultimate accuracy. Available for IOS and Android
  • ALWAYS MAKE SURE YOUR FISH ARE HEALTHY, our fish test strips come with a great e-book explaining what your results mean and how you can keep your water in the perfect condition
  • 50 STRIPS MEANS 50 TESTS - Each testing strip provides accurate and fast results, making the process of checking your pond water chemistry so simple, quick and easy. Clean water = happy fish
  • Manufacture: JNW Direct
  • Editor's Impressions Of The JNW Direct
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

JNW Direct Final Thoughts

"Like nuclear waste water."

The API Test Strips are a good water monitoring system for small tanks. The strips are able to monitor pH, nitrate, nitrite, water hardness. These strips are not to be trusted as a primary testing method for aquariums. This is not the right way to use this test, as it took me awhile to realize this. If I had a complaint, I wish the color legend was printed on the bottle. Very good instructions and a comparison color chart. Nice that so many things are tested with one dip in the water.

Overall Score
4.5


(16 Points)

8. Sera Oxygen-Test (O2) 15 ml, 0.5 fl.oz. Aquarium Test Kits

User Ratings: 67 7

Sera 4914 First Impressions

"Easy to read."

To test it, I bought a 5 pack of 5 site test strips from Petco. If you're looking for a quick-hit on a range of water quality these are the answer. But after last night these are a must have for me. It does take some time though to actually get it done. Quantity of strips seems very good. I cut each strip down the middle so that I have even more tests. The price is great for all these essential tests!

  • Sera Oxygen-Test (O2) 15 ml, 0.5 fl.oz. Aquarium Test Kits
  • Country Of Origin : Germany
  • The Package Height Of The Product Is 5.51 Inches
  • The Package Length Of The Product Is 1.57 Inches
  • The Package Width Of The Product Is 3.54 Inches
  • Manufacture: Sera North America, Inc.
  • Product Dimensions: 1.57 x 3.54 x 5.51 inches; 2.88 Ounces
  • Editor's Impressions Of The Sera 4914
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Sera 4914 Final Thoughts

"YES, it's accurate."

So I got these to try and I love them. Accurate results and much much cheaper than buying from a pet chain. It was also kinda hard to get exactly 5ml Into the tubes. It was also kinda hard to get exactly 5ml Into the tubes. Will definitely buy again, if we ever run out! 6 showing the test strip as an accurate reading. 32 seconds and I have a reading and I'm on my way with no mess.

Overall Score
4.3


(117 Points)

9. Red Sea Fish Pharm ARE21406 Reagent Calcium Pro Refill Kit for Aquarium, 75 Tests

User Ratings: 85

Red Sea Fish Pharm Ltd. 306010 First Impressions

"With this is alot easier."

So I got these to try and I love them. I mean some people would never do a water test at all. It was also kinda hard to get exactly 5ml Into the tubes. My results are never all over the place like other reviewers. The caps do leak a tiny bit on the tubes. They showed the same results as these for the sites they had in common. And if it was, please click on the helpful button below.

  • Red Sea Fish Pharm ARE21406 Reagent Calcium Pro Refill Kit for Aquarium, 75 Tests
  • Calcium pro test kit is an advanced calcium titration test
  • Test refill replenishes calcium pro test kit with sufficient reagent to conduct another 75 tests
  • Measuring the level of calcium in reef aquarium to an exceptionally high accuracy of 5 ppm
  • Calcium, an essential component in the building of coral skeletons, is constantly depleted from the aquarium and needs
  • Conventional titration testing involves a cumbersome process of adding and mixing a titrant with sample water containing reagents
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 4.9 x 3.2 x 2.1 inches; 4 Ounces
  • Editor's Impressions Of The Red Sea Fish Pharm Ltd. 306010
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Red Sea Fish Pharm Ltd. 306010 Final Thoughts

"25 from 0."

You mostly find them using API also. Just dip the strip in the tank water for two seconds, then read right away. I take every precaution about the chlorine, and trust the strips for everything else. First and second test have a little change which was expected. It was also kinda hard to get exactly 5ml Into the tubes. It you take it to a local fish store. These are working very well for me.

Overall Score
4.7


(5 Points)

10. Sera kH-Test 15 ml, 0.5 fl.oz. Aquarium Test Kits

User Ratings: 77 2

Sera 4210 First Impressions

"Pond water testing."

I will now test my water periodically to make sure everything is ok. Price is good for the quantity and functionality of the tester strips. Tetra has always done that and I will continue to use their products. This kit is extremely accurate and very well designed for convenient use and storage. It is one small part of the overall aquarium ownership experience. This is no different so I wouldn't knock this product for that. It you take it to a local fish store.

  • Sera kH-Test 15 ml, 0.5 fl.oz. Aquarium Test Kits
  • In the case of too low KH values we recommend Sera KH/pH-plus (in freshwater) or sera pond bio balance (in ponds)
  • In the case of too high values we recommend filtering through Sera super peat (in freshwater aquariums)
  • Makes it easy to monitor the carbonate hardness in fresh and salt water
  • 15 Milliliter / 0.5 Ounce Test Kit
  • Manufacture: Sera North America, Inc.
  • Product Dimensions: 1.57 x 3.54 x 5.51 inches; 1.41 Ounces
  • Editor's Impressions Of The Sera 4210
  • Test Accuracy
  • Quality
  • Value For Money
  • Affordability

Sera 4210 Final Thoughts

"Easy to use."

As you can see in comparison the only difference was the Nitrate. A brand new aquarium will experience what is called a cycle. No issues so far, test strips work well. Here's Tetra's strips if you're curious. These have worked to keep my fish safe and healthy. My tap water actually was really green and was a very close match to the 1. I started wearing gloves when I use the kit.

Overall Score
4.7


(286 Points)

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