Moon-- primary concern with Fuxfarms soils these days has been seriously acidic soil, poorly cooked and pH'ed,... but yes, it's usually to rich for a starting soil in general; auto's are highly variable in this though, some strains seen to tolerate it far better than others,... look into the photo parents for some hint about their nute' preferences,... So far, they look okay, mate! You'll know instantly, the tips/margins will yellow and brown out, growth slows,... how are you testing actual in-soil pH? ...Hmm, the N content of that soil is an unknown, so I'd start very light feeding with your grow nute at some point, not for a couple-few weeks yet likely... also consider foliar feeding on occasion! (separate lecture there- LOL!)...you'll need a water spreader/wetting agent to do this right, but this product can but used in other, often critical

, applications too,...
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Medi' 
-- how are ya mate? Thank you for the kind words,... and any who have fine skills and solid advice like yourself are welcome to chime in! I appreciate all such help-