DontEvenAsk
420 Member
Had a slight nutrient lockout issue. The older leaves were looking a bit yellow, some signs of magnesium deficiency too, but the newer leaves are looking green and happy, besides a select few. Here's the run down.
Medium: 6" Rockwool Blocks
Phase: Flowering
PH going in: 5.8
PH going out (runoff): 4.8
PPMs: ~1300
MY Solution: I flushed each Rockwool 3 times using PURE RO water PH'ed to 5.9-6.0, but the run off for some of them is still coming out low, around 4.8-5.2.
What do you guys suggest? Should I flush with an even higher PH'd RO water next time to balance it? Say, 6.5? Would that bring my rootzone back to 5.5+? Any suggestions appreciated.
Medium: 6" Rockwool Blocks
Phase: Flowering
PH going in: 5.8
PH going out (runoff): 4.8
PPMs: ~1300
MY Solution: I flushed each Rockwool 3 times using PURE RO water PH'ed to 5.9-6.0, but the run off for some of them is still coming out low, around 4.8-5.2.
What do you guys suggest? Should I flush with an even higher PH'd RO water next time to balance it? Say, 6.5? Would that bring my rootzone back to 5.5+? Any suggestions appreciated.