FFOF can be a little too hot for seedlings as some of the journals around here show. Happy frog seems to be the favorite just above Light Warrior. Personally I haven't used any of them as I make my own soil. I've used Promix as a base and had no problems.
I agree with AK, Promix BX. Much better. Especially with a handful of EWC and a pinch or two of dolomite lime. That would get you going and give 'em plenty of go juice.