Yellowing and curling leaves

[Mainemedical]

I have a northern light blue auto that is about 7 weeks old. She has been starting to show yellowing at the tips and now has started to curl up and down. I fed her at close to full strength with roots organic nutes about a week ago. I have been just giving her plain water and foliar feeding with epsom salt because i thought it was a cal/mg def. because my runoff was around 6.0 ph. I recently discovered that my ph meter is off and I'm not sure how long it has been like this. I plan on calibrating my meter today and testing the run off but I thought I'd post pics to see if anyone has any advise

 

[SmashedByHashish]

sounds like a ph problem... possibly lock out.... get that meter calibrated and find out for sure...

 

[Mainemedical]

I'm thinking I might have to flush her. Would that stunt her at all?

 

[Muddy]

Probably a combination of being over fed a bit and a pH lockout. I wouldn't flush yet. Get an accurate pH reading first.

 

[namvet25]

Flushing won't stunt your girls,but like smashed said check ph.

 

[Mainemedical]

I ran out of 4 ph calibration solution and don't have much money to get more. Are there other things I could use to calibrate my meter? I read on another site that tomato juice has a ph of 4 but I'm not sure about that

 

[The Squid]

Milk is generally around 6.5 You could try and check that. Good luck man.

 

[Mainemedical]

I have 7ph calibration solution and when I put my meter in there it reads 8.0. I guess I will have to order some 4ph calibration solution so my girl doesn't die on me

 

[Red eyed c]

Is the ph meter self calibrating or manuel mate?

 

[Mainemedical]

I assume its manual cause I have to transfer it from one solution to the other but I'm not 100% sure about that