I have a blow off tube on my barly wine right now and it's in a sanitized glass secondary just wondering if I need to put a sanitized solution in the secondary or if it ok how it is dry
Yes. Make sure the end of the tubing is submerged completely, so you can fill it up quite a bit with water and some sanitizer. Or, get something smaller (like a growler), and sanitize that and use that for your blow off water and stick the tube in there.