Question for first attempt

[gaitken]

Hi All,
I have about 15L of cider sitting in a large glass carboy, just put back in for secondary fermentation after adding small amount (~1/4 cup) brown sugar. Was planning to leave for a few months as per instructions from a friend, but have seen no signs of fermentation... should I be seeing something?
Also Carboy is only ~1/2 full... will that much headspace lead to spoilage? What will happen?
My apologies, I jumped into this with very little knowledge and am not afraid I may have messed up this batch. Any advice on what to do would be much appreciated... add concentrate and more yeast? Campden tablets and bottle?
Thanks,
Greg

 

[slym2none]

I can only comment about the headspace - yes, that's too much. For any sort of secondary and/or aging, you want as little headspace as possible. You can either top off with a similar beverage (wine, cider, etc.,) o some people add marbles to make up for any excess headspace.