Jun 30, 2022 #1 Todd31 Active Member View Badges Joined Dec 26, 2014 Messages 477 Reaction score 221 Location United States Rating - 0% 0 0 0 Hello... I have a bottle of Phosphate Rx that is about 5 years old that i never opened... Does it go bad?
Hello... I have a bottle of Phosphate Rx that is about 5 years old that i never opened... Does it go bad?
Jun 30, 2022 #2 Randy Holmes-Farley Reef Chemist View Badges Staff member Super Moderator Excellence Award Expert Contributor Article Contributor R2R Research My Tank Thread Joined Sep 5, 2014 Messages 67,438 Reaction score 63,817 Location Arlington, Massachusetts, United States Rating - 0% 0 0 0 No, it is unchanged.