As many of you know, just about everything I have related to reefing has been purchased used from others. And this is great and I have no regrets. But with that said. I have a bottle of Coral RX from 2014. Yes that’s not a misprint. I have ordered a new bottle but do not expect it til Wednesday. My question is. If Coral RX is basically an insecticide and not a perishable food, is it truly expired. Should I just throw it away. (I have no problem with tossing it. I just don’t want to waste it foolishly). Or have any of you used old coral dip??? As always. Thank you in advance for your input.