m0useanswered grow question 2 years ago I have heard good thing about TPS one, one grower I know swears by it but they also fortify their soil to become super soil.
I like the dry amendments route and its what I'm most comfortable with. I use Gaia Green but other options are Dr.Earth, I find it easy to use just mix into the medium and water in with ph'd water I follow the susgested directions. its something like 3tbsp per Gal every 4 weeks. I do find Gaia Green lacks Magnesium and can use a Potassium boost but other wise its ok. Its also best to use 1/3 to 1/2 in the beginning.
Floranova by GH is also a good one stop option that works nice. I tend to stick to salt based feeds in hydro mediums, coir, peat, perlite kinda thing and dry amendments in soil based grows.
As for auto vs photos, just feed the autos less aorund 1/2 to 1/4 less. Need to keep an eye on the plants and make a call based on what they are saying.
use TDS pens to help make that assessment.
Good Luck!
Good Luck!