I keep a penguin100b wet all the time just for seeding.
Neighbor used it last week.
My record for "cycled" was an Emperor 280. I wet the wheel using hot epsom salt water then let it cool and poured a bottle of well shaken tank water and fish food through it by hand. Let that dry and then poured a bottle of bacterial starter culture (TLC) through it and stuck it in the filter on the tank.
Never saw ammonia or nitrite, nitrate climbed regularly.
Can't garuntee this will work but its nice to know you can "emergency start" filters this way. Bought a guy at the LFS the culture and a bottle of fry flake for a 350b he just bought and he never called the LFS to complain.
The levels were the same again today (so I did another water change) But before that the only difference was my nitrite was 1. So that's spiking.... I hope this spike gets by quickly so my Betta stays safe. I tried to do 2 gallons in my water change and only managed 1 and a half. /=> These levels are a bit high, but I think Neon can handle it.