Hi all. Was wondering if anyone knows what the shelf life is for a bag of caribsea eco complete? I have four bags that I bought 2 years ago with the hopes of then setting up my Fluval 32.5 gallon tank. Well I finally have it set up and I’m starting to gather materials and I’m wondering if the bacteria inside the bags is still good? One bag looks a little greenish. Anyone know? I contacted Caribsea but got no answer. [emoji20]