New grower with discoloration on leaves.

[Jarilo]

Hi all, I'm a new grower and there is a slight discoloration on my leaves and I haven't been able to identify the cause.

A quick rundown on how I'm growing:
- Medium is a Coco-perlite mix. I'd say about 20% perlite
- Using a mrgrowpro.net PC case with 45w of LED lighting
- General Hydroponics Flora Series nutes + CaliMagic

Im following this nutrient schedule.

The discoloration is present on the right-hand side of the top-most leaf.

 

[Jarilo]

I can't seem to find where to edit the post to fix the image link, so I'll just post it here.

As I said previously, the discoloration is present on the right-hand side of the top-most leaf.

 

[DONAJTHEIII]

Stop using the grow bottle and use 6ml micro and 9ml bloom per gal. Also are you using Tap water? Ec ? Ph?

Need more info


Almost looks like cold water temps

 

[Mystic Funk]

looks like bug bites or a mold problem???

do you have a 40x or higher scope? to look at the under side of the leaf?

whats the humidity like?
Are there visible bugs? like: flys, webs, small worm looking bugs???

 

[Jarilo]

Stop using the grow bottle and use 6ml micro and 9ml bloom per gal. Also are you using Tap water? Ec ? Ph?

Need more info


Almost looks like cold water temps

Yes, I'm using tap water. My water is a little alkaline so after mixing my nutrient solution, I PH it down to about 6. As for EC, measuring the water out of the tap with a TDS meter gives me 155 PPM.

Curious about the amounts of nutrients you are recommending. The guide I'm using purposefully gives quite a bit less than what's written on the bottle to prevent nutrient burn. That being said, it also looks like quite a bit less than you recommend.

This is the guide I'm using for the grow. Do you think there is a nutrient deficiency?

looks like bug bites or a mold problem???

do you have a 40x or higher scope? to look at the under side of the leaf?

whats the humidity like?
Are there visible bugs? like: flys, webs, small worm looking bugs???

No, I don't have a scope yet. I will order one right away. No bugs that I can see with the naked eye at least. I'll take a better look once I get a scope. As for the humidity, it's a bit low unfortunately and I'm not sure what to do about raising it in a PC case. Humidity is generally about 30% and I've been using wet sponges in the case to try to keep it up, but that's the best I can do unless anyone has any ideas.


Thanks for taking the time to help, by the way, guys. It is much appreciated.

 

[corky1968]

Humidity below 40% will cause very slow growth.

In vegetative growth it can go a lot higher up to 70%.

During flowering you want it around 40-50%.

Get a spray misting bottle if in doubt.

Check this link:

http://houseplants.about.com/od/gro...-And-Houseplants-How-To-Increase-Humidity.htm

 

[Jarilo]

Quick update: I measured my nutrient solution and got a ppm of 700, if that helps at all with the diagnosis.

 

[Bongstar420]

Its not a problem unless you know the plants performance has changed. I see seedling do this all the time with most of em developing into normal adults.. Some of the best chron does that as seedlings common. I believe 'Blueberry' is one. maybe not though

700ppm seems high for a seedling though salt tolerance verys substantially (I've had perfect veg plants in 3000ppm before)

I can't seem to find where to edit the post to fix the image link, so I'll just post it here.

As I said previously, the discoloration is present on the right-hand side of the top-most leaf.
View Image