I've been using hydro nutes 3 part, trying 10% strength 50-100% strength alternatively... really not sure of how to feed soil hydro nutes, just trying things out lol My first grow I think I burned them pretty bad
They didn't look bad/stressed. I wouldn't have guessed you were struggling with anything. I used Gen Hydro's 3-part nutes when I began growing. But, I was in soilless (Pro-Mix HP without any amendments... just 25% more perlite; so it was organically inactive). I didn't monitor runoff ppms then. It grew well. I had some burn. I followed the "useless" schedule (it's on the growkind forum, if you google for it. It's halfway between the label strength vs the customary half strength people do.).
If you're in soil (not soilless), I'd recommend that you switch to a fertilizer for soil, promoting microbial activity, etc.). I never fed the hydro 3-part in soil. But, I believe (and from what I've read from others) it's far from optimal for soil. It's purely synthetic, chelated, doesn't require soil microbes to participate with the roots. (Just like hydro growers don't put soil fertilizers in their systems.). Soil is supposed to be *dirty*. ("I soiled myself."). The words (soil and dirt) mean something. You want to promote that kind of life. It will interact with the roots. I think hydro nutrients are the wrong direction in that regard. They're not healthy for the microbes. You might not be able to get entirely away from synthetic nutrients (all-in-one, direct-feed vs amended into the soil) probably have some. But, much of the nutrients can be organically source (urea for N, guano for P. K's always a tough one for me. People use wood ashes. But, I like to be more direct-feed and aware of the NPK ratio I'm giving. I use a
Silica Blast product in veg for K. And, potassium sulfate in flower. Langbeinite in flower some times if I need more magnesium.).
Anyway, I think you'd be happy (if you're in soil) using Jack's Classic. Many people use that. (JR Peters makes a citrus ratio and bloom ratio. You can mix those with Classic's 1-1-1 ratio to get custom veg/bloom ratios. (I have a spreadsheet that makes it easy to figure out. I can give that to you.). I use Grow More - Sea Grow. It's more organically-sourced than Jacks (it has blood meal, kelp,
yucca). I mix my Sea Grow with various things to create my own NPK ratios for veg/flower. I can give you my "schedule." It's more like a menu. I can use various things to reach the desired ratio.
Be prepared to feed less in soil. I was feeding 900-1200ppm in soilless. When I switched to soil (and Sea Grow), I mixed my nutrients about that strong. I didn't see leaf burn, so I assumed it was correct. (Synthetic/chelated nutrients are instantly available. I think you get feedback from the leaves in that case. Soil nutrients depend on the microbes.). But, early flower I had salt buildup & lockout (acid soil). The unused nutrients were building up in the soil. It took awhile to figure that out. (That's when I discovered runoff ppm tracks that. I found the strength which doesn't spin out of control. Runoff volume is an important part of this too. I think I have more runoff than most people. I can go a little weaker & lower runoff. Or, stronger & higher runoff.).
Anyway, you don't need proprietary multi-bottle "lineups." You can supplement a not-so-sexy fertilizer product with various things to improve it. (The spreadsheet I mentioned lets you unwind those "lineups" to see the NPK ratio they produce each week. Recreate that with generic things found locally.).