Every strain is different - with the autos I use a grow based nute all the way thru harvest when I see preflowers I may add a little epsom salt ( 1 gram per gallon ) especially with the purple strains
with photo plants I lean on the grow nutes as well but transition to bloom nutes at the end of stretch I wish I was more technical for you but I’m kinda a grow by the seat of pants guy I try and read the plant a give it what it needs as I run 6 /8 strains at once right now - pain I. The ass ! Lots work - I’m currently transitioning to rockwool in a room with clones for consistency. Much easier style grow for sure