I took it all apart last night and washed everything again, like in the water change.
My tetras and platys are all good. I havent put in Diego yet, I'm going to wait until tuesday or wedensday to put him in. He was too expensive to risk like that =/
Hopefully its all good now.
I honestly don't know what she tested. She did it while I wasnt there. I brought her the water sample and she did it after I left shortly after. (I don't live with her)
I need to get my own water test kit with my next pay check next week.