Do octopus live in just salt water?

No there is no recoded species of Octopus that can live in freshwater. There are reports of a species that lives in the Ohio river but all cases have been proven a hoax. well maybe if you were to genetically alter them some how to fresh water organs or by slowly adapting the octopuses one generation at a time to fresh water some how like the saying goes when there is a will theres a way

p.s. the guy who answered this is seriously a jerk, i dont believe in god either but that has nothing to do with the question, so i cleaned up the language of this dumb loser who doesn't know how to answer like a normal KIND person :)