Sounds like FFOF should be diluted with any other unfertilized organic medium for seedlings.FFOF burned my Critical mass and my Blue mystic that I was growing in 5 gallon smart pots. I yanked the plants, added some perlite and a brick of coco and re mixed the soil and now my Pink champagne crossed with Afghan Kush clones are looking good.
Sounds like FFOF should be diluted with any other unfertilized organic medium for seedlings.