What kind of Nutrients do you recommend for automatic feeding systems?

I plan on going automatic since hand watering is kinda annoying .
I remember reading that biological nutrients tend to clogg up things ... now im wondering what you guys are using and for how long you are abled to use the water after mixing with nutes. is it even feasible to mix stuff for one weak in advance ( the nutes im currently using say that its best if they are given within 24hours of mixing).

I use floraflex and it stays clear in the res. I actually used to have to change and clean the res a few times a cycle before, now I can go the whole grow without issue. The pH stays pretty constant after one adjustment the next day.

i use intence nutrients dirt bloom n grow, its what every grower in the uk uses who want decent buds

Anything that’s fully synthetic should be fine, even some stuff with urea based nitrate components do fine in drip and flood unless you’re using really small drippers. For the likes of dwc and aero tho I would only use fully salt based nutes.

in my experience I can say that canna aqua, gh 3 part and cash crop shiva will last 2weeks mixed aslong as it’s moving and has some sort of protection, whether it be sterile or live practises.