vegged for 4 weeks my ppm is only 900 because i dont want to burn them up how much can they take ? i suspect i have three males in the bunch im just waiting for them to show .i hope to be able to spread the girls out a bit .i dont want to clone from this bunch because they are just bag seeds to test my schedule and the systems limits .i wasnt going to spend a wad on seeds i may kill
It will be good practice, plus you might regret not saving a certain strain, even if it is bag seed
Dialing in your ppm will take time... it depends on how you grow (high pressure aero uses way less nutes versus hydro) Comparing 900 to my system and that is way low.. but my strains run at 2000 during bloom and 1500 veg, depending in size... but this is for high flow low pressure aero/nft.. I know my plants well enough now I can tell when they are underfed (stretching, light green) and overfed (dark green, nute burn).