RDWC mg sulfur def?? Ph dropping

View attachment 2674770My babies are showing signs of sulfur and mg deficiencies. Been having minor issues with my new reconciliation system. Using Lucas formula using the floro micro hard water since I'm running with my tap water. Temps in reservoirs are no higher then 70F . air temps are 72-78F. I was showing crazy signs of mg deficiencies about a week ago so I upped the calmag. Then I realized my tap water ppms are almost 300!! So I dropped cal mag all together thinking it was a mg toxicity. Plans have been doing better but are still a bit droopy and have purple stems and interveinial clorosis. Yellowing has gone away but my ph keeps droppin almost .5-1.0 a day. Which is why I think I'm still showing signs of mg deficiency. I am afraid if I keep raising the ph daily it will have too much ph up. by the end of the week I am almost out of my dyna-gro pro tekt. Which is what I'm using for ph up. Please help

ph is 5.4-6.0 but drops to 5.4 almost every day. i can keep it steady at 5.7 if i add dyna grow about 5ml a gal three times a day. keeps it at 5.7 but i am still showing mg def. which locks out under 5.8

ok ph dropping always means BAD news it should always rise (although i will say for some reason mine always stays the same!)

FLUSH FLUSH and FLUSH again, this will lean the slate for you as it were its better then gusseing whats wrong, you could be making things worse adding and taking away etc

Flush with PLAIN tap water DO NOT ph adust, do this until

1. growth returns upwards and ph rises
2. upper growth starts slowly turning pale (there hungry now so low nutes and work up!)
3. ph rises

in dwc when in doubt flush, growth is so fast problems can take hold in days, but take weeks to rectify! hope this helps!

Lemon king said:

ok ph dropping always means BAD news it should always rise (although i will say for some reason mine always stays the same!)

FLUSH FLUSH and FLUSH again, this will lean the slate for you as it were its better then gusseing whats wrong, you could be making things worse adding and taking away etc

Flush with PLAIN tap water DO NOT ph adust, do this until

1. growth returns upwards and ph rises
2. upper growth starts slowly turning pale (there hungry now so low nutes and work up!)
3. ph rises

in dwc when in doubt flush, growth is so fast problems can take hold in days, but take weeks to rectify! hope this helps!

Click to expand...

Thanks lemon king! I will def do that. I have been adding plain tap water for the last day or so. They have perked up a bit. So that's definitely good. So they will be fine just running plain tap water? And once they perk back up and turn that pale green color then it's ready to start them back on their normal regimen? In the pictures I posted what do u think the plants are deficient with ?