Need help identifying deficiency

[NRC707]

I need help identifying the deficiency on my plants. It's been 1 and 1/2 week since I transferred them into the grow block. The leaves started turning yellow and some has black spots on them.

 

[Richard Richardson]

Can you see any tiny insects on your plant?

 

[triggz2k15]

Sounds like fungus gnats but need more info to be sure bro

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[Flowerhead]

More photos would be a help too.

☃ MJ

 

[NRC707]

 

[NRC707]

It's currently in vegetation stage. I'm running a flood drain system with gavita lights. Ppm is at around 800 and ph 5.8-6.1. I haven't notice and bugs on there. What can it be? The leaves are curling and the stems are turning purple

 

[Cultivator]

what is your ppm consisting of? water ppm? what nute brand are you using and what additives? Are you adding calmag? What are your room temps, water temps and RH?

 

[NRC707]

Floragro, Micro and bloom, diamond nectar, flora blend. Ppm sitting around 800. I just added calmag 2 days ago. Room temp was up to was 84.

 

[Cultivator]

it looks like calmag def to me. the red stems and brown spots on leaves are typical with this. you also have heat stress by the look of it, curling up of the fan leaves. either plants are too close to lights or its too hot with low rh.