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🐠 Keep your fish thriving with every drop—test smarter, not harder!
The API pH Test Kit offers 250 reliable tests to monitor freshwater aquarium pH levels between 6.0 and 7.6. This compact kit includes a testing solution, glass test tube, and color card, enabling precise weekly water quality checks to prevent harmful fluctuations and maintain a healthy aquatic environment. Trusted by thousands, it’s the essential tool for proactive fishkeepers who demand accuracy and value.













| ASIN | B000255NAK |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 2,968 in Pet Supplies ( See Top 100 in Pet Supplies ) 6 in Aquarium Test Kits |
| Customer Reviews | 4.3 4.3 out of 5 stars (3,365) |
| Date First Available | 18 Jun. 2007 |
| Item Weight | 68 g |
| Item model number | 28 |
| Number of Items | 1 |
| Pet Type | Fish |
| Product Dimensions | 3.81 x 6.05 x 13.02 cm; 68.03 g |
| Quantity | 1 |
| Size | 1 Count (Pack of 1) |
| Volume | 1.25 |
S**H
Good little kit
Kit works well, is very easy to use and to read the ph using the colour chart provided. The only problem is that if you have a pH of 7.6 this could be 7.6 or higher so you would then need a higher pH kit to make sure your not above that. Apart from that, great value for money and good quality. Would recommend.
C**R
Amazing 250 test in one bottle
This is really great product as ph is very important when keeping fish . And with 250 test you can’t beat it
W**E
Fish tank
Good value
J**E
Easy to use
easy to use and works well
J**N
Api pH test dropper solution
My go to for a reliable test. I use this to compare and calibrate the pH solutions for the pens. First test 6.86 solution with this product. Then use solution to calibrate cheaper pH pen. Seems to work. Save a byte of time. I am reliant on these kits. And believe them to be a great benchmark to go from.
M**N
Easy to use
Very easy to use and read results
D**C
Looking at a pretty Ok assessment of my pH
Very easy to use and while the scale on the colour chart is a tad difficult to assess at times it is so much better than the Tetra 6in1 strips I'd been using. Actually feel I'm looking at a pretty Ok assessment of my pH with this kit. Recommended.
S**N
Inaccurate, unreliable.
I've been working on lowering my aquarium PH for 4 weeks and despite all my efforts, this test kit kept indicating a 7.2-7.6 level. Until I decided comparing it with another brand which indicated a PH at 6.8. For the price, you expect something accurate. I won't buy this brand again.
G**L
The fit
They work well and great fit.
J**N
Producto de confianza
Buen producto con buena validación de los resultados de las pruebas
M**H
Good quality
I used this product for my aquarium... Very very nice product
N**K
Does it’s job. Well priced
I thought this with the API root tabs I reviewed. Good product for the price. I am transitioning my 20 gallon long (76cm x 30x30/ 30”x12”x12”) black water planted tank so I got this to test my water daily to make sure I don’t dip in my pH too quickly
R**O
Todo bien
Tengo dos años con el y aun no se acaba XD hace bien su funcion.
Trustpilot
4 days ago
1 day ago