to be honest, I haven't tested one of my tanks for years. Used to swear by the tests...ammonia, ph, oxygen, nitrates, nitrites, hardness, etc. But, I then realized with all the products I was to put in the water to help clarify the problem, could all be remedied with just simple maintenance and water changes.
Before I discovered the uv sterilizer, I used algea destroyer...watched one by one over a couple months of my fish die. LFS owner said the chemicals actually cause liver failure....same goes for treating for ick...uv light takes care of that
So, I have NO idea what my levels are in any of the tanks. I just look for signs (whisker receeding, heavier breathing,etc) and know that it needs emergency TLC, above regular TLC
oh, honestly, for the size of my giraffe (smaller of the fellows in there) I can't believe the amount he releases!!!! The other day I put in a magnum HOT from upgrading the filtration on another tank...so, on the 125g I have FX5, magmum HOT, AC 110, and the uv light. I STILL want more, lol...