Day 18 from seed. So far, so good. No nutrients added yet but I did add some diatomaceous earth. Every so often I see fungus gnats in my tent. I haven't noticed any damage from them but I've read that the larvae can attack the roots of plants. I'm also going to resist watering so often to keep any fungus away.
Day 21 - Some small growth but looking healthy. I added a little nutrients to the water this time.