Test dissolved oxygen level in water
For freshwater and marine aquarium and aquaculture, pond water, ground water, drinking water
Measurable range from 0 – 15 part per million (ppm) with the resolution of dissolved oxygen at 0.5 ppm

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

Water test strips: economical and versatile, this testing kit offers multiple uses for anyone looking to maintain healthy water conditions.
Tank water test strips: comprehensive functionality for testing water quality in aquariums, fish tanks, and ponds, etc.
Aquarium water test kit: this testing kit is a must-have for anyone who cares about the health of their aquatic pets or plants, can widely use.

[Early Problem Detection]: Detecting subtle changes in levels of total chlorine, nitrates, carbonates, etc. is critical to maintaining the stability and health of your aquarium. Our aquarium test kit allow you to detect potential problems early and take corrective action before your fish develop a condition
[7 in 1]: Our fish tank test strips for freshwater & saltwater fish tanks can accurately and quickly test for the 7 most important parameters: pH, hardness, total chlorine, residual chlorine, carbonates, nitrites, nitrates, ensuring that your fish tank is in the best condition possible
[Save Money & Time]: Water testing kit aquarium contains 100 test strips with 7 parameters each, which is equivalent to testing the water 700 times with one product. You don’t have to spend hundreds of dollars and a lot of time going to the lab to test data one by one

Aquarium Test Tube: this test tube is very suitable for use as a container for aquarium water quality testing; Clear scale, self standing base, sealed screw cap, not easy to break
Durable Material: the product is made of reusable thickened plastic, which is sturdy and resistant to falling, strong and durable; The reusable feature can provide a more economical and affordable experience
Silicone Seal: our test tube is a rotating threaded cap with a silicone seal ring inside, which will not leak under 80kap negative pressure test; Effectively protect the measured liquid quality

Contains one (1) API NITRITE TEST KIT 180-Test Freshwater and Saltwater Aquarium Test Kit, including 1 bottle of testing solution, 1 color card and 1 test tube with cap
Helps monitor nitrite and prevent invisible water problems that can be harmful to fish
Accurately detects high nitrate levels from 0-5 ppm