Top 10 Aquarium Water Test Kits in 2027
The JBL ProAquaTest Lab is the aquarium water test kit with the most tests: 13 in one case for tap water and freshwater aquariums. The sera aqua-test box (9 tests) is #2 and Tetra EasyStrips 6-in-1 (6 tests) is #3.
At a glance
| # | Pick | Tests in the kit | Best for |
|---|---|---|---|
| 1 | JBL ProAquaTest Lab | 13 tests | A freshwater or planted tank where you want iron, silicate, oxygen and phosphate as well as the nitrogen cycle |
| 2 | sera aqua-test box | 9 tests | Freshwater keepers who want a full panel including phosphate and iron in one box |
| 3 | Tetra EasyStrips 6-in-1 Aquarium Test Strips | 6 tests | A quick weekly check of a freshwater or saltwater tank without glass tubes |
| 4 | Salifert Master Reef Testing Combo Kit | 6 tests | A reef tank where you track calcium, magnesium and alkalinity |
| 5 | API Freshwater Master Test Kit | 5 tests | A new freshwater tank where you watch the nitrogen cycle |
| 6 | Seachem MultiTest Marine Basic | 5 tests | A saltwater tank that needs pH, alkalinity and the nitrogen cycle checked |
| 7 | API Reef Master Test Kit | 4 tests | A reef tank on a budget that needs calcium, KH, phosphate and nitrate |
| 8 | Red Sea Reef Foundation Pro Multi Test Kit | 3 tests | Reef keepers who dose supplements and need calcium, alkalinity and magnesium kept in balance |
| 9 | Seachem MultiTest Ammonia | 1 test (free and total ammonia) | Readings of free ammonia while using ammonia removers like Prime |
| 10 | Hanna Marine Alkalinity Checker HC (HI772) | 1 test (alkalinity in dKH) | Reef keepers who want an alkalinity reading from a digital display instead of a colour chart |
Pick by what you want
The ranking
JBL ProAquaTest Lab
The JBL ProAquaTest Lab is a test case with 13 tests for tap water and freshwater aquariums. It covers pH in 3 ranges, carbonate and general hardness, ammonium/ammonia, nitrite, nitrate, phosphate, iron, copper, silicate and oxygen, with a CO2 table. It ships with 12 glass vials and 2 syringes; JBL does not publish a price.
sera aqua-test box
The sera aqua-test box has 9 tests for freshwater aquariums and garden ponds: pH, GH, KH, nitrite, nitrate, ammonia/ammonium, phosphate and iron, plus copper or chlorine depending on the box. It includes 250 ml of sera aqua-dest pure water and lists at EUR 77.85 for the +Cl box.
Tetra EasyStrips 6-in-1 Aquarium Test Strips
Tetra EasyStrips 6-in-1 test chlorine, nitrite, nitrate, alkalinity, hardness and pH with a 1-second dip and a 60-second wait. They come in 4, 25 and 100 strip packs, with LiveAquaria listing 25 strips at $10.99 and 100 strips at $29.99.
Salifert Master Reef Testing Combo Kit
The Salifert Master Reef Testing Combo Kit bundles 6 liquid tests: calcium, magnesium, alkalinity, nitrate, phosphate and pH. SaltwaterAquarium.com lists roughly 50 to 100 calcium tests and 100 to 200 alkalinity tests, at $99.99.
API Freshwater Master Test Kit
The API Freshwater Master Test Kit has 5 tests: low range pH, high range pH, ammonia, nitrite and nitrate, in 4 test tubes with a colour card. API says it conducts 800+ tests and LiveAquaria lists it at $35.98.
Seachem MultiTest Marine Basic
Seachem MultiTest Marine Basic combines the marine pH and alkalinity, ammonia, and nitrite and nitrate tests, for 5 tests in total. Seachem says it performs over 75 tests of each, and SuperCichlids lists it at $39.99.
API Reef Master Test Kit
The API Reef Master Test Kit has 4 tests: calcium, carbonate hardness, phosphate and nitrate, with 4 glass test tubes. LiveAquaria lists about 70 calcium tests, 150 phosphate tests and 110 nitrate tests, at $32.79.
Red Sea Reef Foundation Pro Multi Test Kit
The Red Sea Reef Foundation Pro Multi Test Kit has 3 titration tests: calcium (75 tests), KH/alkalinity (75) and magnesium (60), run with a single-hand titrator. LiveAquaria lists it at $69.99.
Seachem MultiTest Ammonia
Seachem MultiTest Ammonia is a single liquid test that reads total and free ammonia down to less than 0.05 mg/L, in marine or freshwater, and performs over 75 tests. Bulk Reef Supply lists it at $16.31.
Hanna Marine Alkalinity Checker HC (HI772)
The Hanna Marine Alkalinity (dKH) Checker HC (HI772) is a handheld digital colorimeter that reads 0.0 to 20.0 dKH in 0.1 dKH steps, with accuracy of ±0.3 dKH ±5% of reading. It comes with reagents for 25 tests and LiveAquaria lists it at $54.95.
How we ranked these
Questions people ask
Which aquarium water test kit measures the most things?
The JBL ProAquaTest Lab, a case with 13 tests for tap water and freshwater aquariums. The sera aqua-test box has 9.
What does the API Freshwater Master Test Kit test?
Low range pH, high range pH, ammonia, nitrite and nitrate, using liquid reagents and test tubes.
Do Tetra EasyStrips work in saltwater?
Yes. LiveAquaria says all EasyStrips can be used in fresh or saltwater aquariums. The 6-in-1 strip measures chlorine, nitrite, nitrate, alkalinity, hardness and pH.
Which test kit is for reef tanks?
The Salifert Master Reef Testing Combo Kit covers calcium, magnesium, alkalinity, nitrate, phosphate and pH, and the API Reef Master Test Kit covers calcium, carbonate hardness, phosphate and nitrate.
Tests in the kit at a glance
Official sites
- JBL ProAquaTest Lab · charterhouse-aquatics.com
- sera aqua-test box · aquaristikshop.com
- Tetra EasyStrips 6-in-1 Aquarium Test Strips · tetra-fish.com
- Salifert Master Reef Testing Combo Kit · saltwateraquarium.com
- API Freshwater Master Test Kit · apifishcare.com
- Seachem MultiTest Marine Basic · seachem.com
- API Reef Master Test Kit · apifishcare.com
- Red Sea Reef Foundation Pro Multi Test Kit · liveaquaria.com
- Seachem MultiTest Ammonia · seachem.com
- Hanna Marine Alkalinity Checker HC (HI772) · liveaquaria.com
Sources
Prices, specs and availability change; confirm on the official site before you buy.