New Grower New think different grow

so what do you recommend? Should I continue to just give PH'd water and start feeding later? Or should I start feeding the next watering. This soil was also mixed into the last grows soil
 
The yellowing on this one plant is getting worse. I PH everything between 6.2-6.5 I've been just giving them PH'd water up til the last watering where I put a tsp of cal mag because someone said they are hungry for MG during the first few weeks, someone please help me out here
 
I'm not sure but that means your soil is ph of 5.6. I would try to raise it a little . I had the same prob but my leaves had little rust spots . Mine didn't yellow like yours.
 
I water at 6.8 but your soil and nutes if there are any may be different . I would raise it to 6.8 then check the runoff if its at 6.6 then your soil is at around 6.4 which is about right 6.5 is perfect for soil. When start nutes besure to check your ph water after the nutes are added. Might take a few watering's to get it right. Hope this helps.
 
This is my soil mix :
4 gallons Pro Mix
1 gallon worm castings
1-1/2 gallons pearlite
4 Tblsp Blood meal
4 Tblsp Bone meal
8 Tblsp Kelp Meal
4 Tblsp Epsom salts

They are around 17 days old and have just been giving them PH'd water so far. The only thing I gave them last watering was a tsp of cal/mag, and then they started yellowing. Someone told me TD loves MG the first couple weeks
 
Just watered the second yellowing one. My PH'd water was at 6.8 I got a run off of 6.7
 
I'm not a expert by no means but that mix your using might be a little hot . Did you use any plain soil at the top of that mix . I heard of people using seed starter mix or just plan promix at the top of a mixture like. I def would hold on the nutes for a while with that mix. But I would ded raise the ph 6.8 then check it again. Could be that that mix is a little hot. But don't freak out. Mine finaly started to work out and are doing good . How's the growth?
 
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