Aquarium Water Testing Using The API Freshwater Master Test Kit

 

In this video, I walk you step‑by‑step through my routine water‑testing procedure, showing exactly how I use the API Freshwater Master Test kit, along with the API KH and GH kits, to keep my tank chemistry in balance. I start by measuring pH, then move on to the critical nitrogen cycle parameters, ammonia, nitrite and nitrate—making sure each test tube changes colour precisely as the instructions dictate. Next, I check water hardness, first the carbonate hardness (KH) and then the general hardness (GH), using the dedicated drops to gauge the buffering capacity and mineral content of the water. To round out a truly comprehensive analysis, I also take a reading with my handheld TDS meter to confirm the total dissolved solids level. By the end of the demonstration, you’ll see a complete outline of my aquarium’s water quality and learn how to replicate the process for a healthier, more stable fish environment.

Thanks for watching!

I hope you enjoyed the video. Just a quick note: when adding ammonia and nitrite, be sure to shake the test tubes for 5 seconds each to thoroughly mix the solutions – I apologise for not mentioning that during the demonstration.