I have always heard that tap water can contain ammonia but I have only tested my tap water once before and it came op zero. In fact I have seen this topic before on here and everyone elses always came up zero also.
Well, just on a whim I did water tests on all three of my tanks and my tap water. Anyone care to guess which is which?

I'm surprised.. but I'm on a public water system here in SoCal.

Well, just on a whim I did water tests on all three of my tanks and my tap water. Anyone care to guess which is which?

I'm surprised.. but I'm on a public water system here in SoCal.
