The truth is, you can probably skip the peroxide. I used to tell people who bought powered anodes to use it, just to be safe. But then I started forgetting to tell them. Nothing happened. It’s probably not necessary.
There is a temptation to view the bacteria as dangerous, but they are not, just odiferous. Once you take away the sacrificial anode, they cease to attract your notice.
If I turn out to be wrong on this, I’ll have rotten egg on my face.:shock: