topping off secondary

[earl15]

Im fairly new to wine making and I have a hopefully simple question. 1. When I racked off into my carboy I am about half a gallon short in a 5 gallon carboy what should I top off with? water? wine? Thank you

[grapeadmin]

I prefer any similar kind of wine but water would be much better than not topping up.

thanks
john
g and g