Hey Folks, I bought a 7.5 gallon and 6.5 gallon fermonster recently with my intension of using the smaller one as a 2ndary. However I have a cider I want to age for 3 months using the 6.5 but its all plastic. Is this okay to do? I bought it with the intention of maybe keeping a beer in the 2ndary for a month (i felt that was ok, not too much oxygen would get inside). But going for 3 months or longer has me concerned.