Yellow Spots on my leaves

[ERbasa]

Hi everybody!
I' ve tried to find a solution to my problem in the guides and older posts of this forum, but my research was unsuccesful.
So, here I am to ask you: what are these yellow spots on my leaves?
Here some growing infos:

Indoor box 90x90x180
29 Days
plants 1: pyramid seeds - nefertiti, plant 2 Royal queen - royal haze, plant 3 dinafem - amnesia, plant 4 dinafem - white widow (all 4 are autos)
Temp: 28 °C
HR: 45 %
Medium: Light mix - biobizz
Nutes: BioGrow, BioBloom, Alg.A.Mic, Top Max (all from biobizz)
Vent: Asp. 200 mc/h with carbon filter and rotating fan inside
Light: Agro 250W 20/4 h

Anybody can help me? Thanks!!

 

[namvet25]

Are the nutes organic and do they contain any cal/mag?

 

[Marty5678]

What's pH of water in and run off? Also looks like something has been eating some of your leaves!



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[ERbasa]

Thanks for your questions guys!

So:

Are the nutes organic and do they contain any cal/mag?

Bio Bloom gives NPK and Bio Grow Also
After your Question, I've read around that using biobizz nutes some Cal/Mag deficiency can appear. I've used a Nutes guide founded in these forum, in the organic thread, and I tought was complete. maybe my girlz needs more! =)

What's pH of water in and run off? Also looks like something has been eating some of your leaves!

I've checked for mites or trips but I didn't found anything inside the box or under the leaves. I'm not measuring PH, my tap water arrives at 7.2, but I've read that using organic nutes the PH measure it's not necessary. My last four harvest were outdoor, and I've used the schedule without problem. This one is my first time indoor. Do you think is a deficiency problem or an absorbing problem due to high PH?

Today this is the situation, seems it's going worst than 2 days ago, now i'm a little bit worried =(

 

[namvet25]

With organic nutes there is no need to ph your water but you should still use cal/mag.Afew bottom older leaves will yellow and die and this is some what normal.I do see some lighter green leaves that look like she needs some added nitrogen or veg nutes.Try giving a full dose of veg nutes and see if that greens them up.It won't help the real bad leaves and with organic nutes it will take longer for them to show improvement.Meanwhile i would remove the worse leaves and hope the veg nutes help.

 

[ERbasa]

With organic nutes there is no need to ph your water but you should still use cal/mag.Afew bottom older leaves will yellow and die and this is some what normal.I do see some lighter green leaves that look like she needs some added nitrogen or veg nutes.Try giving a full dose of veg nutes and see if that greens them up.It won't help the real bad leaves and with organic nutes it will take longer for them to show improvement.Meanwhile i would remove the worse leaves and hope the veg nutes help.

Thank you man. Do tou have any suggestions for Cal/mag organic add? Or I have to use Chemical nutes for those elements?
About veg nutes i'm giving the full suggested age-related doses for NPK (BioGrow and Biobloom). Should I give more in your opinion?
I've supposed that big fan leaves will become yellow during growing, but maybe now the yellow process is too fast! =)