API Freshwater Master Test Kit, Kit includes laminated color card, 4 test tubes & holding tray

Product Information

Yes, they do! API Master Test Kits typically come with an expiry date that gives you 5 years to use them. If you have a very old API Test Kit, it may not have an expiry date, but only a date of manufacture disguised in the Lot number. For example, Lot # 28A0107 indicates a date of production in January 2007. Way too old to use! Copper testing is useful in conjunction with a copper-based medication to treat various fish diseases.

This is exactly the same 9 parameters as the Sera Aqua Test Box offers, except for a calcium test in place of the copper tests, which makes it useful for reef tanks and planted tanks! This compromises a tiny bit of accuracy, but still, 0.5 increments in pH should be sufficient for most aquarium owners. GH stands for general hardness and is measured in dGH (degrees of general hardness). GH is the sum total of all the particles dissolved in the water. 1 dGH is equivalent to 17.9 ppm. Like ammonia, nitrite is another nitrogenous compound that needs to be kept at zero for the well-being of your fish. Nitrite poisoning results in fish with brown-colored gills breathing fast and struggling to obtain enough oxygen.Some users have expressed frustrations over test tube caps coming loose and slightly vague color cards, but in general, this is a well-made kit that’s especially useful for marine and reef tank users. Things We Like:

Adding driftwood, Indian almond leaves, and peat are some common ways that aquarists add tannins to their aquariums to reduce pH. This 9-in-1 box kit offers a comprehensive set of tests from Sera, a reputable specialist in aquarium equipment. The color card that comes as part of the kit offers very detailed readings, with each parameter measured in small increments.Cap the test tube and shake well for 5 seconds. Do not hold finger over open end of tube as this may affect the test results. CO2 tests are essential if you’re using a carbon dioxide injection system to boost plant growth in an aquascaped aquarium.