Apr 10, 2024 #1 ChrisfromBrick Active Member View Badges Joined Mar 29, 2024 Messages 271 Reaction score 180 Location Brick, NJ Rating - 0% 0 0 0 this test kit is very old. Has nitrate, nitrite, ammonia, Ca, Alk, pH and phosphate. Does this have a shelf life? Are these any good?? It’s made by Hagen. Should I replace my kits with something better?
this test kit is very old. Has nitrate, nitrite, ammonia, Ca, Alk, pH and phosphate. Does this have a shelf life? Are these any good?? It’s made by Hagen. Should I replace my kits with something better?
Apr 10, 2024 #2 Johnd651 Getting back in after 10+ years View Badges 518 Reefers My Tank Thread Joined Oct 29, 2019 Messages 1,170 Reaction score 1,582 Location Utica, NY Rating - 0% 0 0 0 It depends on a lot of things. A lot of times the titrants start to evaporate and concentrate the solutions. If everything was sealed, and there's no buildup, probably still ok.
It depends on a lot of things. A lot of times the titrants start to evaporate and concentrate the solutions. If everything was sealed, and there's no buildup, probably still ok.
Apr 10, 2024 #3 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 68,486 Reaction score 65,096 Location Arlington, Massachusetts, United States Rating - 0% 0 0 0 All kits have a time limitation to accuracy, but I don’t know what it is for any kit, even those with dates on them.
All kits have a time limitation to accuracy, but I don’t know what it is for any kit, even those with dates on them.
Apr 10, 2024 #4 MnFish1 10K Club member View Badges Partner Member 2024 Fish Medic R2R Research R2R Secret Santa 2023 My Tank Thread Joined Dec 28, 2016 Messages 23,303 Reaction score 22,318 Location Midwest Rating - 100% 1 0 0 I would buy a new one - unless there is an expiration date on the box/etc
Apr 10, 2024 #5 OP OP ChrisfromBrick Active Member View Badges Joined Mar 29, 2024 Messages 271 Reaction score 180 Location Brick, NJ Rating - 0% 0 0 0 i’ll just get the hanna kit but dang the sale ended yesterday.