I was wondering how everyone disinfects an air stone or a filter after they have had harmful bacteria, infections, or any other nasty thing in their tank?
Well at my LFS i work at for some reason we tank out the decor in the tanks and bleach them. Then soak in vinegar and rinse off with hot water. That kills all the algea and bacteria on the stuff to keep it looking nice.
I would usually also do a 5min boiling water dip if applicable, just to be safe.
Like for decorations and substrate. Do not use it on your filter as hot water may damage the filter pump.