yes i agree on changing the nutes every 10 days. sometimes you will see things and feel like you should do it sooner, it is definately a "feel" thing you'll get over time.

as for adjusting the PH, i would do the PH down rather than adding more grow as that can burn your plants and mess up the whole process. i don't think they are ready for more parts per million with more grow nutes.
kuri Reviewed by kuri on . Hydro/Bubbler question My current crop is 4 1-2 week seedlings in 5gal. bubble buckets. Seedlings are HighGradeSeeds mix pack. I plan on adding 2 (other grow female) clones to this setup once they root. I vegged them under 80wt floros 1-1.5 weeks. I just put the eldest seedling under 300watts hps at a distance of 3 ft. They are in pure hydroton. Rating: 5