I use a mix of FFOF/Light warrior 2 to 1. For clones. And for seeds I start off with a party cup with Light warrior. And has worked great, gotta love the mycos in LW that fire off roots. I have used straight FFOF in some plants and worked fine. Just gotta watch plants for super dark green leaves, burnt tips and clawing down but I grow organic so burnt leaves is something I don't see much of anymore.