Advanced nutrients for newbie

I bought the three bottles of advanced nutrients PH perfect, do I mix three different bottles with their own mix and then water my plants? Do you start with the micro, then later with the grow and then bloom?Or can I mix all three together? How much would you give 3-4” plants? Seedlings? Thanks

You are supposed to add one product at a time into water and they do recommend a specific order on their website (I think it’s micro, then grow, then bloom). Do not mix them together before adding to water, I believe it causes some issues due to chemical reactions that don’t happen when diluted, and use half their recommended dosage.

Seedlings don’t need to be fed unless they look like they are deficient. As for how much to feed...water your plants until runoff, wait until the dry out, do the same again, wait until they dry out and do the same again but with nutrients mixed in at half dosage, and just keep repeating that.

Ok thanks guys . Is there a certain number of weeks per bottle?