Yellow spots on leaves

[Nxte]

Fed them some cal mag and bloom only yesterday as people suspected some nitrogen toxicity - PH water at 6.4.

I am stumped, moved fans for wind burn.

Assuming pests aren’t the issue.

I’m stumped about nute burn from previous feed of only PH down water???

 

[RivetGrrl]

Good that you gave them calmag, looks like they need that.
Your foliage doesn't look too deep of a green yet, which is another N toxicity sign, how does the new growth look?
They look like they could be too close to the light, and maybe over watered?
How often do you water and does you mix drain well?
Any way to test the runoff pH and ppm?

 

[Nxte]

Good that you gave them calmag, looks like they need that.
Your foliage doesn't look too deep of a green yet, which is another N toxicity sign, how does the new growth look?
They look like they could be too close to the light, and maybe over watered?
How often do you water and does you mix drain well?
Any way to test the runoff pH and ppm?

I haven’t fed any N nutrients in nearly two weeks. I water when they are dry but when I water I don’t really get any real run off, the medium soaks most of the water. I feed 6 plants off 25 litres (UK)

I’ve now raised the light

 

[Waira]

that dark discoloring looks like early P defc., which also causes some yellowing,... Ca defc. symptoms don't repair, so halting of progression is what to look for, and inputs need a couple days or so to take affect.... In the future, tale all pics in normal light, HPS hides too much of the color clues,....
Also, don't let them get too dry, some cycling is OK, but never even close to wilting,... it screws with pH, relaive nute conc. in there and can lead to burning, damaged roots,.etc.....

 

[Nxte]

New light has arrived, £70 customs charge!

Kind of wishing I could start over, but to spend so much electricity and to throw them away, my girlfriend would kill me!!

One girl has started flowering

Girls are all suffering, first grow but learning a lot. But trying to help them just unsure of what the best course of action is.

Then the saddest plant in the tent...

Then woke up to this...

And then the left baby is going skewed

 

[karlkutta]

So what are you giving them now when watering? Calmag and other nutes? You're checking the pH, right?

You said 25liters for 6 plants, how big are your pots? I have two plants in 3 gallon / 12 liter pots and and if I use 1 gal / 4L of water I have quite some runoff.

Just comparing notes here.

 

[Nxte]

So what are you giving them now when watering? Calmag and other nutes? You're checking the pH, right?

You said 25liters for 6 plants, how big are your pots? I have two plants in 3 gallon / 12 liter pots and and if I use 1 gal / 4L of water I have quite some runoff.

Just comparing notes here.

The pots are 12.5L/13.5L.

It seems the medium holds a lot of the liquid, but I don’t get other than a small puddle in the trays.

Not all 25 get used, the last feed they got 2ml/g of bloom and the same with micro. And then I give 50ml cal mag in whole feed.

I feed nutrients every other feed.

I use a hose with a small fish tank pump to feed out of the bucket.

 

[karlkutta]

The pots are 12.5L/13.5L.

It seems the medium holds a lot of the liquid, but I don’t get other than a small puddle in the trays.

Not all 25 get used, the last feed they got 2ml/g of bloom and the same with micro. And then I give 50ml cal mag in whole feed.

I feed nutrients every other feed.

I use a hose with a small fish tank pump to feed out of the bucket.

I'm not the expert here but I think 5ml/gallon calmag is a full dose. If you feed 50ml/25L that's almost twice the standard, this in addition to your other nutes seems alot. But again, I'm new to this myself.

Karl

 

[Waira]

feed them bloom nutes and Ca-Mg, these plants are far from toast mate!

 

[Nxte]

feed them bloom nutes and Ca-Mg, these plants are far from toast mate!

I’m PHing (unless my pen has been permanently broken from start to finish!)

But even after nute feed with bloom and cal mag, maybe I need to up the calmag and bloom?

The bottom leaves have gone completely yellow now.

Haven’t seen any happiness in the leaves in a long time, like they are permanently depressed!

Starting to rub off on me too I hope I can still get enough smoke to tide me over til the end of my next grow.