Please Help me to deal with this!

Hi Guys,
I really need your help dealing with this issue.
I think it's calcium but I'm not sure.

I run a DWC in Veg.
I use RO Water RC 0.00
Canna Mono Ca/Mg 1:1 to EC 0.4
Than adding GHE GMB to 3:2:1 to EC 1.0.
Ph~6.3
Temp 27°C 68%RH Water Temp 22°C.
Lighting with LED strips at 250w/1.44m2

I read a lot about K: Ca: Mg (3:2:1)ratios and I am asking myself if I fucked up the ratio by adding the CalMg but I really have no idea anymore.

Please help me my fellow growers.
Enjoy your post Christmas
Thank you

Looks like there may be mites as well.

Try PH of 6.0 instead. Only Ph once daily. Make sure your meter is calibrated!!

Make sure you don't have any root issues. Hydroguard works well.

Use a loupe to inspect for pests. Mites are very hard to see even with a 40x loupe. So look really hard everywhere on your plant!
If you have pests, use Azamax. Once every 3 days for the first week then once every 5 days after that.

Stop giving cal/mag, your micronutrients have enough in them for your setup.

Dim your light and move it further away.

When you try a solution you have to give enough time to see if it's working before trying a different one or you will keep creating new problems.

Follow all these instructions for a couple weeks. You want to do this long enough that you get enough new growth to eventually remove any damaged or affected leaves. Damaged leaves will not fix themselves.

DO NOT START FLOWERING UNTIL YOU HAVE HEALTHY PLANTS.

Wow thank you. this will help me a lot.
I actually treated them for the spidermites yesterday .
I use the microbes and bacteria from AN because hydro guard is not available in Germany but I guess it will bring similar results.
Why should I aim for oh 6.0?
As far as I know calcium is best absorbt above 6.2.

Thank you so much for your post my friend

You are correct, but the nutes will be a better balance for your plant at a ph of 5.8-6.0
6.3 is not bad, just a little high for veg in my opinion. You could probably implement everything I said and long as your ph is between 5.5 - 6.4 you shouldn't see any major issues, but 6.0 is a good balance cause it will allow your plant to drift up or down into ranges that are still acceptable for your plant. If you start at 6.3 and it decides to drift up, your ph is going to be pretty high for a vegging plant in dwc.

To each their own and you might have to experiment a little. I could give you my exact recipe and it would still produce varying results in a different grow setup. So I hope you figure it out and best of luck on your grow

Im bad at converting EC to ppm and all that so it might be fine, but you might want to cut down on nute strength as well til she isn't stressed anymore. When she is healthy again and you decide to add nutes or bring the light closer make sure to do it slowly and give yourself time to see if that little difference is going to be the cause of a new deficiency so if it happens you know to reverse the last change that you made. My plants light was so strong that my plants drank alot of my high ppm nute solution causing it to lockout. They got plenty nutes from the mix, but not enough water. A weaker solution actually made them grow faster and more robust.