4.5 out of 5
Customer Reviews
By
horatio s.
Date: April 12, 2025
I can’t speak to how well it works- I was hoping to use it to make sure there was no or almost no copper in my water, but it doesn’t measure very low levels so wasn’t suitable for my purposes
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]
By
Manuel Munoz
Date: March 29, 2025
little confusing at first but it works great unfortunately it’s plastic containers. helped me restore my shrimp thanks and keep everything healthy.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Smokeymike
Date: February 01, 2025
Very easy to test and adjust aquarium water ph
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Kristi barnes
Date: January 14, 2025
Works well.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
ToxicSans
Date: January 08, 2025
This product was extremely helpful for me to see how hard my tap water was for my Axolotl aquarium. Super easy to use, pretty quick results, definitely recommend.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Mad Mensch
Date: August 31, 2024
I don’t recommend this kit for freshwater planted aquariums if you need accurate results below 1ppm. As you can see in the pic the color values below 1ppm are all so similar that it could be 0ppm if you hold the tube one way, or 0.5ppm if you hold it another way. For freshwater planted aquariums often times you are trying to diagnose an algae problem where phosphate levels of 0.5ppm vs 0ppm is a major difference. In that respect this test is useless. I’ll give API 3 stars for ease of use because their instructions are clear unlike Salifert, but in terms of accuracy I don’t recommend them.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Jonathon mock
Date: August 15, 2024
Got the order in timely manner but the instructions that came with them is for Nitrite test.. now how am I supposed to find the instructions amp; color chart? Also does this mean the box was tampered with or just wrong instructions? Hopefully what I find online is accurate, 4 stars bc the master kit has been awesome but would like to use these as well.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
sungwei
Date: August 11, 2024
Came with instructions for Nitrate test kit instead of KH and GH instructions. Had to search online.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Reverie
Date: August 11, 2024
Easy to use with consistent results.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Lis
Date: July 05, 2024
I got two pH up and one pH down and NO test solution. WTH?
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Al Torres
Date: June 24, 2024
Got this on sale so definitely picked it up. Was on my watch list forever then went on sale.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Rick889764
Date: June 10, 2024
I've been doing marine/reef tanks over 30 yrs. And reviewing experienced fish Keepers, you can learn a lot. Use of copper for fish parasites is highly effective, but deadly if strict instructions are not met! This copper test is ok for experienced fish/aquariest. But i recommend a more accurate for the beginners and novice hobbiest. And most of all, time and patience must be followed.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Jade Wright
Date: May 03, 2024
while everything was in order and it wasn't completely broke, the bottles of reagent leaked on the box and instructions quite badly despite it being packaged decently well. don't be surprised to open to a saturated package, but it worked otherwise
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Jake Bigelow
Date: April 11, 2024
Pretty accurate and easy to read
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Mikaiya DalPorto
Date: April 03, 2024
Instructions were difficult to understand but other than that it serves its purpose
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Gabrielle
Date: March 14, 2024
The colors of the two liquids are swapped on the instructions. KH is orange and GH is blue, but instructions for watching color change says the opposite
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Steven Elliott
Date: March 08, 2024
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Sam N.
Date: August 31, 2023
This comes with one api glass tube which is nice if you did not buy the master test kit and do not have any tubes. Also nice to get another one since they are fragile. Same stuff that in master kit, but without buying the kit.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Alpacamade
Date: February 28, 2023
There is often a question of how accurate these tests are; that question is a legitmate question.My answer is; as accurate to industry standards for the consumer market.Spend an extra $5-$10 for a few syringes, 1 for each tank. 1 for liquid fertilizers, et cetera. Fill your test tubes with tank water using a syringe, not the dip method. Your test results will be as consistant over time, as possible.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Jerry C
Date: February 27, 2023
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]