What are the odds on this?

[stoneydee]

Making my customary rounds of the tanks (six freshwater), getting ready to do maintenance chores I did ammonia tests first, and all six tanks were at zero.

This has never happened to me before, so I repeated on the three that are still cycling - same results, zero. What do you suppose are the odds on that?

 

[Sinuhe]

I have 3 tanks and have never registered ammonia in them. Maybe something is wrong with the test, but the fish have not shown any sign of ammonia levels, either.

 

[William]

I felt the same way, to, when my tanks matured and got 0s all the time

 

[Sati]

My 3 tanks are always 0.