Originally Posted by cmor1701d
Stay awwy from the test strips. They are ok for a swimming pool I guess, but not for an aquarium.
I used them early on when I was cycling, but that's about it. They're good for detecting "zero" amounts of things, but if there's any measurable amount of whatever it is you're measuring... I've found it tough to determine the actual number. They're kind of a "go/no-go" gauge for water parameters.
I used the 5-1 strips when cycling to check and see when my nitrItes were starting to drop. They're great for that.