In need of cal mag?

[Jmax]

These are sativa plants in which I find a lil tricky to grow compared to indica. I been using Ff trio but only been using the fox n bloom nutes ( just started bloom nutes). I got some cal mag coming in today to see will it help the problem, any input will be appreciated

 

[Bugus_Monkey]

Might be slight nitrogen deficient. My Cal/Mag has nitrogen in it. What has yellowed will not re-green but at least it should stop with your cal mag. Not as familiar with FF. Usually they are pretty good with their N disbursement in their products. Hopefully someone else will chime in.

 

[pute]

Not a cal/mag issue imo. Looks like a lock out problem. What is your ph?

 

[Bubba]

What dirt and how much nutes have been given over what time....lock out is distinct possibility.

And like pure said, what pH?

 

[Jmax]

I ph the water at 6.5. I use a blue lab pen to test the ph and to be extra sure I use a vivosun pen too and they both read the same. Fox farm soil and nutes. I started off with fox nutes then later I used fox and bloom nutes

 

[Jmax]

I also use the same water for other plants and they have no issues

 

[user 60570]

lower that Ph to 5.2 , flush a couple days with distilled water , slowly add some diluted cal-mag for a couple days , then add regular nutrients per your feeding schedule

trying this may not work but it ain’t gonna hurt to much at this stage