why no ammonia readings?

[jm1212]

those daily water change couldve been removing something toxic that the background was releasing or making sure that their levels didnt reach deadly levels. when you skipped the water change for 4 days, it couldve let the chemicals released build up for 4 days.

 

[JHRavensfan77]

honestly I don't know if lime would affect the ph or not... I just mentioned it b/c when I used to work with tile we were always told to wear gloves when we grouted b/c it would eat away at our fingers over time.