mag def ?? or strain related..

[DIGITALHIPPY]

seams to be running low on mag no matter how much i add....

sadhu at 3 weeks.
Ro water w/an line sensical, ffof, 80F Day 70F Night

some others seam a bit less but still...mag def.
white satin.

hash berry.

 

[marijuanamat]

I'd say they the white satin and hashberry lokk a little nitrogen deficient and the sadhu looks like you've slightly over done it with nitrogen by the way the top leafs are clawing over.

 

[stinkyattic]

What's the pot size on those? Insufficient volume leads to soil chemistry troubles even if you think youare doing everything else right.
You should flush anyway, because N overdose in flower is no bueno! Then go back to feeding with a bloom fert.

 

[richyrich]

Looks like overfert to me. Random yellow spots on some of the leaves may be the beginning of salt buildup on the leaves before they fry. Clawing leaves. Looks like a mag problem because of lockout. Also, the sensical builds up quick in soil if you do not ever give it a flush once in a while. I found out the hard way. Give them a really good flush. Check runoff ph too just in case.

 

[Stone]

My first thought was Iron deficiency?
But even that doesn't look like a clear cut case...

I'd also give a good flush, then hit em w/ what you think they need.
They look pretty healthy overall, though.
Nothing they ouldn't bounce back from

 

[inflorescence]

Mg def starts at the lower to mid leaves.
Those leaves look ok.

Are you talking about the severe yellow tops?

That would be iron or sulphur but also a day and night temp to close together and/or too rapid growth.

Distilled water lacks iron and sulphur and tap usually has plenty of sulphur with some iron.

BTW, if you could color correct your photos with photoshop it would help a lot or just take pics with a regular incandescant bulb because all your green looks washed out in yellow to me.

 

[DIGITALHIPPY]

Mg def starts at the lower to mid leaves.
Those leaves look ok.

Are you talking about the severe yellow tops?

That would be iron or sulphur but also a day and night temp to close together and/or too rapid growth.

Distilled water lacks iron and sulphur and tap usually has plenty of sulphur with some iron.

BTW, if you could color correct your photos with photoshop it would help a lot or just take pics with a regular incandescant bulb because all your green looks washed out in yellow to me.

ok sorry man ill try that.

there in 5 gal buckets, i use alot of sensi-cal... im guessing i need to use more. there very large plants, about 5ft. i thought as an afterthought it could be iron ...i c the N tox "claw" itll go away, ive already reduce N as much as possible. ok so ill use more sensi-cal.

oh the yellow spots you guys are taking about?? i dont see any...taking more pics soon.thanks for help.
*edit. pics added.
plant seams much better after i gave a mega-dose of mag yesterday.

this is what i used to fix. had this product along time and like it alot.

tips are still a bit bright, could be mag still, but i bet there short on iron and sulfer if its this short on mag.

inflorescence- i edited the WB of the pics, the colors are very clear now.