Is this overfert or ph problem?

[there goes edro]

I'm suspecting this is from overfert but not really sure. Plant has been vegging for 3 weeks in soil under a 400w mh/hps. Fed 4 days ago with 5ml of FF grow big per gal of water. Yeah, strain is Nightmare Kush aka The White. Got trandplanted into 2 gal container about 3 days ago. Problem started about 2 days ago. Edges of the leaves curling up and the yellowish spots. Dont have a ph meter because I only run a few plants and grows have been pretty trouble free until this run. Any input or advice would be greatly appreciated. Thanks!

 

[TheCleanGame]

---snip---

 

[there goes edro]

Mucho Better!

Mucho Better!



Def overfert! Doing much better after a flush and some love. Mental note" Can't feed with Fox Farm nutes at the same concentration as Pure Blend, stupid!" Thanks for the input TCG!

 

[stihgnobevoli]

always check your ph before anything else.

 

[wildgrow]

always check your ph before anything else.

Rule of thumb.

Borrow a meter if that's what it takes. I recently did this and mixed up a few test batches of nutes so I could see what they ph'd at.

FF will drop ph fast. The lit used to say feed every other watering, and I think now it says twice a week. I was going 3 x 2 weeks and my leaves were always too dark green. Im trying every other watering at 1/2 now without the powders - seems like not enough so far, but not sure.

 

[there goes edro]

I will invest ina ph meter. Any suggestions on a reliable, not to costly meter?

 

[wildgrow]

Ive only used the 1. I know theres a whats the best ph pen thread around.
Check amazon and ebay. Simplest Blue Lab meters start around $80. Don't forget the the cleaning/calibration/storage liquids. It will be useless without them.

 

[stihgnobevoli]

the drops and litmus paper work just fine, don't really need a meter unless you're a scientist.

 

[cannaera]

looks like you got a slight mg def starting, of course they are high on nitrogen looking at how dark they are, but the banding starting appears as early signs of mg def.