Yeah 1/4 strength will be probably ok. FF is super overdosed following their schedule. I’d shoot for like .5-0.6 EC for weeks 1.5-2.5 then .08 EC week after that. Then maybe 1.0 until flowering begins then 1.2-1.4 in flower if needed bump it up..
Autos are so finicky and one might like 2.0 EC and one might look like complete ass with that high of nutes. It’s a complete toss up. Best to take it slow and read plant.
Watch pH cuz tiger bloom is acidic, it tanks my pH