It makes no difference - If you want to sterilize everything - go for it. The problem here is that you didn't quarantine your fish IMHO. Feel free to start over. However - For the thread it would be nice to explain your rationale - using microbiology/parasitolody - and ditto for those people (many I respect) - recommending you do it - because it runs counter to every recommendation by the fish medics on this forum - I'll repeat it again - you can do what ever you want. all good
Sorry, but I'm unable to use microbiology to explain. My rational is that I am not a risk taker and that my preference would be to reboot.