I have always wondered about this. When testing for basic water parameters, most kits require you to wait 5 min for results. If you wait longer does the test reflect more accurate, less accurate or the same results?
The reason I ask is I tested for NH3
last night and the test came back ok. I forgot to dump the test tube and when I looked at it this morning it appeared my NH3
levels were now reading in the .25-.50ppm level which is obvious reason for concern as they have been 0 for over a week.
If it is accurate, I believe the cause be a dead snail or two. I am also wondering if my new pumps could be to blame by stirring up possible stagnant areas?