Racking to secondary and leaving headspace

[soubre]

I'm doing my first lager and I just racked from a 6 gallon to a 5 gallon carboy and I still have some headspace. Is this ok? Also I sucked up some leftover lees and gunk of the bottom it wasn't much will this throw an off flavor?

 

[two_hearted]

If you have some CO2 you can flush out oxygen and leave a CO2 blanket.

 

[soubre]

I have plenty co2 . How do I go about doing this with the stopper and airlock

 

[johnp]

Co2 is heavier than air so just spray some in the headspace and replace the airlock, the co2 won't flow out