Many thank yous.
So next time I just make the mix with the nutes to target ec/ph, but and this can also be a question to
@Proph , having that nutrient line in mind and the schedulle that accompanies it, i should do the mix and after measuring i should just put more water to dilute it? or more to make it stronger?
Or I should ditch the biobizz and get another line that i can control better?
As proph says, your current line should be fine, you just need to get it adjusted for your autoflower plants. For mixing, you can just mix at full strength according to the nute instructions, and once completely dissolved, add water until you get to your target EC. If your tap water is more than ~300EC absolutely max, you should use deionized or distilled to mix your nutes. Some tap water, including mine is bad news for cannabis. I am now using melted snow as my irrigation water source.
My current grow might serve as an example of the EC's that can work. I am in Sunshine #4 plus 30% or so of perlite. This is a mix with very little added nutrient, considered more of a soilless medium than soil. Even in this very light medium, I am currently at only ~650EC, and that includes ~45EC water, ~100EC of cal mag, ~100EC of kelp extract, and some fulvic acid. That's only ~400EC of Megacrop, which is a third of what Megacrop recommends for flowering, which my plants will be starting with before long - the larger plants are at Day 38 today. As is posted again and again here, when it comes to nutes, less is often more. Start low, and let the plants tell you when they get hungry.
As the photo below shows, my plants are not suffering from lack of nutes at this low EC. For scale, the duct is 4 inches, and the fabric pots are rolled down 5 gallon ones.
The small plant on the right might like a bit more feed, but I am not going to bother with that because all I want from it is some pollen, and that should be sorted in another couple weeks if not sooner, at which point she/he is destined for the bin.
Good luck getting your grow sorted, keep us posted on how you make out.
