Hi guys and gals. I'm attempting to make some plum wine. It seems to be doing quite well so far but after sitting back and reading a lot of posts, I have learned that once you have racked to secondary then you need very little head room. I only have about 2 1/2 gallons in a 6 1/2 gallon carboy. It has been like this for about 1 1/2 months. Have I ruined the wine from oxidation? I have some one gallon jugs now but am unsure if I need to proceed or start over. If I need to continue what do I add after transferring to one gallon jugs? K-meta? Sorbate? Do I degas before or after moving to gallon jugs? I hope I haven't messed it up.