Also if it's impossible for you to get any media, try Seachem Stability. I ended up cycling my first tank with that and now it's been a breeze ever since. However, while doing it make sure to have a liquid test kit(the strips are terrible imo) so you can make sure there are no spikes or drops in anything that will make your friends kick the bucket prematurely. When I cycled I also added Seachem Prime to make sure that during the cycle build-up nothing would harm them.