litz, just so you know I'm not trying to be rude, just making sure you knew, plus lots of folks will read these posts well into the future and may learn something along the way.
Lots of folks have burned the hell out of seedlings with
FFOF. Some strains tolerate it fine though, so it's a hit or miss proposition. Next seedlings should prob go into something a bit more neutral like
ProMix or Sunshine Mix. I'd grow them in that for a week or two then transplant to a slightly larger container. My clones seem to love
FFOF from my experience, but of course even if they're small they're still mature plants.
Molasses 1tsp per gallon every other watering should green them up. I use Grandma's, it's a yellow bottle available at most US grocery stores. Glad to help out.