You said you were defo getting enough light. does your hand feel uncomfortable when you place it over the tops of the plants?

nope its fine my light is on the side so the plant is even all the way up (i wanted to try this) it seems to give incredibly bushy plants

i am not worried about the yellowing at the bottom that just defieciencys the one i am worried about is the yellow patches in the center of the leaves near the top of the plant also the leaves near the top are starting to curl in on themselves (on the underside) if this gives any
help on the diagnosis

thanks a lot for all of your help lads

ad

http://www.rollitup.org/marijuana-pics/index.php?n=387
that is the link to the bit i am worried about

sounds like too much nutes. On your next couple of feeds just try plain water.

okies i will give it a shot

thanks peeps
ad

when only the top leafs start to curl thats an indicator for heat stress...

cool i will get another fan in there and see what happens

thanks again ad

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Ok Folks,
You are dealing with stress! Yes nutes can cause this as well as heat! But guess what? Your Ph level is out of wack! Cannabis needs a Ph level between 6.1 - 6.2. Had better check Ph before changing nutes levels. I've been in this business of growing for more than 20 years and time and time again people don't ever bother with Ph levels. If Ph is out of wack your roots will get little or no nutes to the rest of the plant, causing spotting from top of plant and working it's way down over time! So my suggestion is check your Ph level first!

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Also forgot to mention the temp of your roots should be between 64 degrees (F) to 68 Degrees (F) for the most healthiest root system. And yes curling is an indication of heat stress, but spotting occurs from to much nutes or Ph balance being out of wack!

what is there around the house that i can use to lower ph then i have lime but i was using lemon juice to lower. is that ok just to double check i heard that it was ok from a different site id just like to double check my facts