I can't identify this deficiency

Moby Dick XXL Autoflowering Dinafem
Soil: Top Crop
Watering every 2-3 days with only ph balanced water 11lts pot.
5 weeks old.
This is my brother plant, he had some issues taking care of this one, because he was supossed to travel abroad and he didn't was worried about taking care of this plant, so I decided to take care of it now.
I wasn't able to identify the deficiency it has, so I came here asking for help of more experienced growers, I'm growing for first time in addition to this one which is my brother's.

A little help should be nice!
Thanks!

It's a spanish made soil, it is supossed to be a complete soil, as "ALL MIX" for example. I didn't find more info but here is the web http://www.topcropfert.com/index.php?pag=productos.

If I could see the pot I would probably guess it a little small. Root bound plants exhibit strange deficiencies. Also, its probably time to start feeding her.

orbo said:

If I could see the pot I would probably guess it a little small. Root bound plants exhibit strange deficiencies. Also, its probably time to start feeding her.

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here!

xxorezxx said:

here! View attachment 3576666 View attachment 3576667

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Ok, thats actually better than I thought. It looked tiny in the first pic. You say you haven't fed it yet? Just pH'ed water? She needs some grub.

orbo said:

Ok, thats actually better than I thought. It looked tiny in the first pic. You say you haven't fed it yet? Just pH'ed water? She needs some grub.

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I'll then, but I don't which fertilizer use, maybe top max or bio-bloom?

Well, I looked at that soil and its in Spanish so I can't do much with that. I mix my own and its pretty good, but it only lasts me about 4-6 weeks thru veg so I'm guessing your soil is about cashed. Based on just the ratios alone of the 2 you've mentioned if it were me I would go with the Bio-Bloom.

Ok, I'll wait till monday. Thx a lot !