Plant has stripey leaves first grow help

This is my first grow, I have 4 plants that iv put in to a rdwc system yesterday. Last week I was told I have been under watering my plants as the edges were light green. It has grown a lot more but the leaves are stripey and not the same colour. What do you think i could be doing wrong? Also the lower leaves have small patches on them

What are you feeding them?

She looks super short on Mg at the moment, but that doesn't mean anything yet. Are you feeding Mg? If so, how much? What pH are you running? What's your reservoir temps?

I’m using ro water with 0ec calmag to 0.4ec and I’m using canna veg,Rhizo tonic and cannazym ec total of 1 and ph of 5.7 res temp is 18 degrees c.
This was her last week,

With RO water you NEED to use calmag.

I am using calmag I’m putting 0.4 ec of calmag in

Ganit said:

I am using calmag I’m putting 0.4 ec of calmag in

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Personally for the size of the plant you’re ok as far as EC is concerned IMO

Nutrient deficiencies aren’t Going to correct themselves.

just make sure your roots are receiving enough nutrient solution with them being small.