Reef Tank Additives Expiration

[NeonRabbit221B]

?I recently got several half/full bottles of various Kent Marine additives including Coral Vite, Coral Accel, Purple Tech, Tech M Magnesium, Iodine and I led me to wonder. Are any of these safe to use after expiration? Any additives that are stable for significantly longer? Its like 20 different types of supplements and I hate for them all to go to waste.

 

[Pife]

I wouldn't risk my livestock to expired goods.

 

[NeonRabbit221B]

I already tossed out anything that was related to fish meal/protein but I am leaning toward tossing it all. Kalkwasser Mix?

 

[Gareth elliott]

Id toss the coral vite and coral acel. Vitamins do have expiration dates some longer than others. Astaxanthin, is very unstable in oxygen as an example. And coral acel is actual proteins, this can spoil. Other chemicals, if they are stable in solution there is no real expiration date, the magnesium, iodine, etc. id chuck the purple up, simply because its kinda useless