prime

uk is pretty cold i would put it in the garage which is pretty cold
 
3 gallons is a bit execcive, but hey if you do a 40g water change every week it will last you 14 years.
 
safe?
 
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.
 
I like the idea of the Safe powdered version. I think I may look into that for my next purchase. :) I have plenty of prime left for my tanks for a while, but come spring I'm going to need a good amount to treat the pond prior to getting fish in there.
 
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