For those that do not know what safe is. From what i am reading about safe on Seachem's website it is a powered version of prime. It has the same benefits but is more concentrated.
My question is that for those that have used both, can you elaborate on stated shelf life and any inconveniences such as the sulfur smell when comparing to the two products? I am considering ordering a bottle for my 55 gallon tank and i don't want to get too big of a bottle.