Jun 30, 2022 #1 Todd31 Active Member View Badges Joined Dec 26, 2014 Messages 478 Reaction score 224 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 Verified Community Expert Reef Chemist View Badges Staff member Super Moderator Excellence Award Expert Contributor Article Contributor R2R Research My Tank Thread Joined Sep 5, 2014 Messages 72,100 Reaction score 69,741 Location Massachusetts, United States Rating - 0% 0 0 0 No, it is unchanged.