Help! stains on leaves?

[AgroMarciano]

hi everyone,

today it is day 20 for my Moby Dick XXL and about 5 days ago the first two leaves started to show some stains and break off... So if someone could tell me what it is i would be very appreciated
I have been feeding it 2.5 ml/L Ata Terra leaves and 1ml/L rootfast (ATAMI)...

Could it be overfeeding or is it a pest??



This is the link to my grow journal:

1st Grow - Indoor - Moby Dick XXL Auto - Blue Amnesia XXL Auto - White Widow XXL Auto



This is the scenery:


Grow Type - Soil
Grow Stage - Vegetative
Bucket Size - (2) 11lt (3gal) Kasvi pot + (1) 3lt (1gal aprox) normal pot
Lights - (1) 150w LED + (1) 150w HPS
Nutrients - Ata Terra leaves + terra max + rootfast + Atazyme + Bloombastic + Delta 9
Medium - Biobizz Lightmix
Light cycle - 20/4
Humidity - 35-40 RH
Temp - 24-27°C (75-80°F) lights on - 18°C (64.4°F) lights off
Light distance - 32 cm (1ft) aprox

Space - 40x40x160 Grow Tent
1 extractor
1 fan
1 humidifier

 

[Growlow]

Re: Help! stains on leaves??

Based off the list of things it could be the most likely I'm going to guesstimate would be Calcium deficient.

Here is a couple of photos to help you better identify Nutrient Deficiency/Excess

Hope this helps you, Cheers