ok so i dont know what this is they are like golden yellow curcles that have begun to form and on one plant it has even gone all the way through the leaf creating a small hole. is this heat stress or nute burn? any feedback would be great!

Attached Images

	Photo 40.jpg (89.6 KB, 0 views)
	Photo 39.jpg (85.9 KB, 0 views)
	Photo 38.jpg (87.3 KB, 0 views)

what nutes r u giving them

__________________
Everything I write is fictional, only delinquents cultivate marijuana

Before anyone can accurately guess as to which problem is the source, is there any reason to think either may be the causative agent (those being heat and/or nutrient burn)? Only you have the answer to that at this point.

Is it hot where your plants are being housed? Are you using chemical (as opposed to organic) nutrient sources?

__________________
Ron Paul doesn't deliver babies.
He reads them the Bill of Rights until they crawl their way to freedom!

sensi grow two part nutrients only at this point, there is a 400w hps 20 inches above the canopy and it is not hot. i just dont know what it is because they usually say nute burn is seen on the tips and this occurs more in the center of the leaf.

What's the temperature? Saying it's not hot doesn't really tell anyone anything. Two part nutrients. What form and source (what's on the label)? At what rate and ratio? What nutrients? What are their percentages of N-P-K?

__________________
Ron Paul doesn't deliver babies.
He reads them the Bill of Rights until they crawl their way to freedom!

sensi grow parts a and pars b, 900 ppm at 75 degrees F. 900 ppm changing about every 7-10 days.

any help please, i reall just dont know whats goin gone, the pics at the top are a genereal idea of what all the leaves that have been affected look like.

nute burn or maybe u got some pests check the growfaq

__________________
*Everything here is a lie* Sex Poll>Sex while High (Poll) Journal>My 2nd Time Grow, With CFL's Mylar Alt>Sybstitue for mylar is this true???

I would read the ingredient list of your nutrients. Since you're apparently growing hydroponically then you must provide all nutrients, including micronutrients. And those are very difficult to measure, quantify, and if necessary rectify. For instance, cupping leaves may be a sign of molybdenum deficiency. I've found a LOT of good, hard scientific information just using Google. For instance, you could put in the search bar something like "malformed leaves, yellow circle, hole, hydroponic growing medium, plant" and you could garner some very interesting results.
malformed leaves, yellow circle, hole, hydroponic growing medium, plant - Google Search

__________________
Ron Paul doesn't deliver babies.
He reads them the Bill of Rights until they crawl their way to freedom!