Hey Budman, nice looking grow so far. I would say that little burn on your seedling is definitely from the ocean forest. It will grow out of it, just don't give it anything but water for a couple weeks. I don't use that stuff for my seedlings anymore.
The Querkle can be a slow vegger all depends on what pheno ya get, get one urkle dom and ya it's gonna be slow. As for the 400 it should be fine, I veg with one, overkill yeah a little but it's not too much.
Good luck with the grow bud, I will be watching.
I have decided that moving forward I will no longer be using ffof for starting seedlings. The ChemD doesn't seem to mind it but the querkles look pissed. Haha pics to follow