Why Are The There Black Dots On Plant? (pics)

[Maaaaurice]

Why does this plant look like this it's the only one out of the 8 that look like this? Is it nute burn? Haven't gave any nutes just been watering in ffof soil about 18 days old from being transplanted from rockwoll cube to solo and about 9 days from being transplanted from solo to 3 gallon pot

 

[wooitzme]

Looks like nitrogen toxicity but you said you didn't give it any nutes.. whats your Temps day and night? Also you said you watered them? Tap or ro? Ph? Anything added to the water?

If the environment at night is really cold, they can show this sign too.

Also under watering shows this sign as well. Any more details would be helpful

 

[wooitzme]

Btw if you see any of them about to turn yellow it could be phosporus deficiency. Might want to flush with PhD clean water and add some nutes. They could be shocked.

 

[Maaaaurice]

Looks like nitrogen toxicity but you said you didn't give it any nutes.. whats your Temps day and night? Also you said you watered them? Tap or ro? Ph? Anything added to the water?

If the environment at night is really cold, they can show this sign too.

Also under watering shows this sign as well. Any more details would be helpful

Temps are between 72-80 I water with tap ph to 6.0 and have added superthirve to last couple watering

 

[3N1GM4]

What strain is it? It just looked like purpling to me.
Hope it isnt this.
http://m.videojug.com/film/how-to-deal-with-black-spot-leaf-disease

 

[mauiinfinity]

Could be ph burn to

 

[Maaaaurice]

What strain is it? It just looked like purpling to me.
Hope it isnt this.
http://m.videojug.com/film/how-to-deal-with-black-spot-leaf-disease

It's skywalker og have two sky walkers and this is the only one that looks like it

 

[Seamaiden]

Looks like the beginning of a Ca- to me. If you haven't been feeding them, that could help explain it. Ca- is hard to come back from, but since you're still in veg it's totally doable.

 

[wooitzme]

6.0 is pretty low for soil. Might want to up your ph and also introduce some nutes. Like seamaiden said, could he calcium too. Do you know your ppm for tap and also if its hard water?