Different symptoms on different plants.. please help!

[THCRx]

I have 4 plants that seem to be running into some problems... Im about at my wits end! I believe it all started because of ph problems. It would seem my soil ph was low 5s at the start, and as I have been watering ive been slowly bringing it up. Now Im worried that im causing toxicity, nute burn, or dealing with a mag deficiency! Please help if you can tell what the problem is!

Plant 1 - White Dwarf

Plant 2 - Easy Ryder

Plant 3 - Easy Ryder

Plant 4 - SS Haze


The rest of the ladies are doing great.

 

[THCRx]

On the SS have the stem and petioles are purple.

 

[DubV]

Its definitely a ph issue bro and it looks like a Cal/mag lockout on 3 of them that I can tell. Probably more calcium since ph was so low. Have you flushed because you have necrosis setting in on at least two of them? I am not a huge fan of flushing but when you see necrosis its time to clean out your soil and let it stabilize before you do anything else.

 

[THCRx]

Havent flushed yet... I just watered a couple of them.... should I go ahead and flush anyways?

 

[THCRx]

The nutes I use have no calcium in them, and i dont have lime in the soil... I picked up some epsom salt tonight. I was going to foliar feed at 5 tablespoons per gallon.

 

[DubV]

What was your ph of the runoff after watering bro?

 

[THCRx]

like 6.18... but ive been trying to bring it up. Its been lower than that. Ive been watering at 7. Should I flush plants Ive watered recently, or wait until they dry again?

 

[DubV]

Is the necrosis spots all on old growth or is it spreading to new growth?

 

[JM]

The nutes I use have no calcium in them, and i dont have lime in the soil... I picked up some epsom salt tonight. I was going to foliar feed at 5 tablespoons per gallon.

whoa!!! way too strong! 1 tsp per gallon of epsom for foliar....

if you're readin 6.18 out sounds ok... a flush could help... but if ph is stable, should be closing in... lets have a look:



at 6.18 you're just below Potassium / calcium / magnesium... so thats why the issues...
I'd say with all you've been through... flush clean till soil reads 6.4... then go back and hit em with a light shot of veg nutes and a good shot of flower nutes... dunno your nutes but with GB, and TB, use 1 tsp / gallon GB, 2 tsp / gallon TB, and 4 teapsoons Big Bloom if you use it.

 

[THCRx]

Old growth. Although the tips are yellow on some of the new growth.