Jpappy....I meant NH3. API test kit is for 3 and 4. As far as testing correctly, I tested 3 times. I also tested my Betta tank and got good readings. I filled my containers last night and left them opened to allow for evaporation of toxins. I will treat the water when I get home today and do the water change. Fish still seam ok, so I'm hoping too much damage has not been done. Thank you all for your input. I will continue with updates.
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