- Joined
- Feb 9, 2017
- Messages
- 73
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- 22
I have a 1 kg container of Reef Foundation A that has an expiration date over 1 year ago. I bought it a while ago and forgot about it. I decided over the weekend to use it - but didn't notice the expiration date until after I mixed it up and put it on my DT for dosing. Will this be a problem? I've never noticed an expiration date on calcium and alkalinity supplements before. Why does this have an expiration date?