I,ve been havin a bit of a problem with this one for a few weeks but it getin worse, started with yellowing at the bottom so i upped the feeds, its had a few 3-3,s 1-3, 2-3 the last few weeks i,m 5 weeeks in and 2 of them are lookin worse for wear the other is yellow all around the edge of the leafs and is getin no better
first 1
Click to view attachmentClick to view attachmentClick to view attachment

2 nd just around the edge of the leafs on this 1Click to view attachmentit,s like all over

is 1 over ferted should i flush it ?

heres the first plant Click to view attachment a few days agoClick to view attachment

heres second 1Click to view attachmentClick to view attachment there the best pics i have of her sorry thats couple of day ago and shes not pickin up either

thanks
C,R

Are these grow/bloom ratios?

They look hungry to me man. Really hungry.

What's your compost + air exchange like?

Yep - looks like magnesium defficiency, but masked by nitrogen defficiency ...

I tend to underfeed mine and get fan leaf yellowing, but yours are a fair bit worse than mine.

That said, you have a fair bit of smoking material there

You've done amazingly well to grow plants that size under a 400 watt HPS with so little headroom !

Oh wow, yeah, good job!

Sorry, didn't think to look at your profile heh

Eri
ye m8 there the ratios what N o 1,s had the last few feeds

Comp do you think 2 of them are mg def ,they all got epson salts last week but forgotin to do 1 out of the 11,and i do,nt know what 1 it was

nice for the comments
it,s gettin harder though with this weather

C,R

forgot to ask before (i was in a rush) ,what do you think, should up the feed to 4-5 or 4-4 ,with a dash of salts, with them already havin a high feed
the bloom that i,m using is bio harvest NPK-6-5-6 is this the same as biobizz bloom
thanks
c,r

have u thought about getting LeafCoat 100% Organic Plant Strengthener Against Fungi and Plagues. LeafCoat is a Ready To Use product that was developed to restrain evaporation. It is made of natural latex. LeafCoat strengthens plants and provides them with a powerful expelling effect on harmful insects. It also prevents against harmful leaf fungi.

just a thought myte help it myte not hope it does tho m8ee

i,ll have a look into that tange, thanks m8,
i,ve give them 2 a 4-3 feed with epson salt and they have not got any worse,so fingers crossed ,but i,ve just looked at them earlier, and found another 2 now lookin so good, the thing is that they have alreay had epson salt last week, could they need more?
this 1
[attachment=141885:DSC01217.JPG was ok last night
there was just a little bit of yellowing on the bottom of her,over night she come out in this rash there is about 1o leafs effected
dont what to loose this battle

anyone think this mg or worse

thank
C,R

Click to view attachment

My £0:02

I think you're massively over-feeding. I had exactly the same symptoms my last 3 grows. My last grow I gave almost no nutes, only when the plants screamed for it.... and the difference is staggering. tbh, there's not a lot you can do about it now. Personally I'd just feed the appropriate feed levels according to OT's guide ( 2ml G 1ml B til end) and just leave 'em be. I really DID kill my plants with kindess last time

n.b. the reason i give this diagnosis (*blab disclaimer, I may be wrong*) is cos the leaves in the first few photos show tip burn - the serrated edges are crisping, and the manky bottom leaves could be anything - lack of light, over-watering, poor airflow, too high temps etc etc etc

hope that helps

B

thanks for the reply m8
the 1 in todays pic has been feed by the guide ,it was the first 2, that got high feed ratios ,because they were still going yellow after giving them the guide feed ,plus the first 2 hav,nt got worse since give them a 4-3 and e/s, it only took them 2 days to go like that ,so i know it,s slowed down

temps were a bit high 2 weeks ago,,but ive sorted that the max 30 R/H30-40% i know that low but would it have this effect ,

c,r

Haven't a clue with RH tbh mate....

Another day another headache,
lost 1 of them,, no1 pic
and one of the others that started fucin up,is still givin me a challange, her she is with 7 day differents
Click to view attachment

Click to view attachment

this is today, all leaf around bud have dryed out, and buds are crisp, the last few days the fan leafs, have all gone the same has the pictures in post 9-10
3 weeks left and prayin no others turn turk,,

c,r