I totally respect Zags, as an expert even on
FW.
But I would personally consider adding plants now. 1.) they will carry some beneficial bacteria on them
2.) they will absorb some of the ammonia and nitrogen compounds.
The upside: They carry bacteria on their surface
The downside: They will lower your ammonia level, causing you to think you are cycled sooner....however, if you wait, even with plants, to get to a nitrate reading, you will be ok. Just know a little about how plants absorb nutrients.
Unless you can get a friend to give you some filter media. THat is the quickest way through.