Both are great sanatizers
Maybe your using to much iodophor if its staining your equipment.
Bubbles are ok with starsan.
Both are no rinse sanatizers
Spotted Dog Brewing
"This is grain, which any fool can eat, but for which the Lord intended a more divine means of consumption.. Beer!"
-Robin Hood, Prince of Thieves, Friar Tuck
"The nations of the West also have their own intoxicant, made from grain soaked in water...Alas, what wonderful ingenuity vice possesses! A method has actually been discovered for making even water intoxicated."
- Pliny the Elder