help any1 understand wot going wrong here

hi i have my plant 3weeks into flowering using vitalink max feeds
im using a bubbler system but at the min ive only got 1 bucket hocked up
im using 30liter res my last mix was 90ml A 90ml B BLOOM and 60ml FULVIC and 7.5ML SUPERTHRIVE
i change my res water every week my ph is at 5.8 lights a 600w sunblaster normal intake and outtake in tent
temps are 29c lights on max is 31c lights off 25c
my air pump is on 24/7 ive got a 6outlet pump so at the moment i have 3 air stones in each my res tank and my bucket my water level is 2-3inchs down my net pot
ph is 5.8
ec is at 1.92 (ec reading with normal water is 0.37)

any 1 have any idea's were im going wrong or anythink else i may not have done right?

1. temps are to high pal, 27-28 MAX 31 is far to high

2. lower the nutes, your pics are bad but they look burnt

easiest thing is STOP all nutriants and just give them ph water and yes 5.8 is bang on, i use coco so no need to ph but all the same stop all nutes clean your res and just give them pure water till they clear up and look green again, looks like u have sum stretch ther too,, lower the lght pal,

Dammmnn., how long you veg for? Not sure but I have a set about the same age and their root system looks like this..,
View attachment 2647776
I use a root stimulant through veg, Humboldt roots although I know I've seen another they say is just as or better called Excelsior. Heres my plants right at about 7-8 weeks old after 2 weeks of flowering..,
View attachment 2647780
I know nothing of the Nute line your using so couldnt even hazard a guess on that for you. Other than that I add 1/2 ml 34% H2o4 per gallon to the solution.., disease prevention.

Wish I could offer more insight..,

I'm no pro grower mate but i do know this 7.5ml seems way to much super thrive in a 30 litre bucket...i put 3 drops into 35 litre sometimes 2....but then again i'm a less is good till plants show they want more when it comes to nutes and additives.....someone will read this and point you in the right direction mate ....goodluck

IC3M4L3 said:

1. temps are to high pal, 27-28 MAX 31 is far to high

2. lower the nutes, your pics are bad but they look burnt

easiest thing is STOP all nutriants and just give them ph water and yes 5.8 is bang on, i use coco so no need to ph but all the same stop all nutes clean your res and just give them pure water till they clear up and look green again, looks like u have sum stretch ther too,, lower the lght pal,

Click to expand...

thanks for the reply cheers mate for the advise how long would you give them plan water for as im in flowering stage or doesnt that matter my lights is 20inch off top of my plant that to high?

and the heat is a problem i cant seem to get down dont ask why i have 2 fans in the plus intake and outtake :/

thanks for the reply im sure the grow shop told me to use 1ml per 4 liters :/ other then that no1 has said anythink about the superthrive amount :/

SimplySmokin said:

Dammmnn., how long you veg for? Not sure but I have a set about the same age and their root system looks like this..,
View attachment 2647776
I use a root stimulant through veg, Humboldt roots although I know I've seen another they say is just as or better called Excelsior. Heres my plants right at about 7-8 weeks old after 2 weeks of flowering..,
View attachment 2647780View attachment 2647781
I know nothing of the Nute line your using so couldnt even hazard a guess on that for you. Other than that I add 1/2 ml 34% H2o4 per gallon to the solution.., disease prevention.

Wish I could offer more insight..,

Click to expand...

i veged for about 4-5weeks this plant was from seed started this seed in feb 24th

Get some frozen bottles of water put them in front of you fans and it will help bring your temps down a bit....its not a permanent solution but will help for now...ive had a crappy 2 days of battling temps in the uk sweating my nutts off lol....in and out with frozen bottles ....but it helps for now....

cheers mate for the reply and advise

no morries mate we are all here to learn and riu has the best guys imo on the net when it comes to growing the good stuff ....hope all turns out well mate ...good luck...

They wont get much better while temps are 30, get it below 28 maximum.

I agree about the temps being to high, if you can't get them down you can seal your area and add CO2 if you've got the money just a thought. I also think you are feeding them way to much, a 1.9 ec is pretty high I believe, I thought most guys ran in the 1.0-1.5 ec area. I don't have a meter that measures in EC, only PPM and I typically run my plants between 1000 and 1600 ppm through their life with great results. Anyway it looks like the nutes could be burning the leaves though its hard to tell from the blurry pictures.

gettin my temp down is turning out harder then i thought i have intake outtake 2fans inside my room and still its gettting to 29c max 30c still would me spraying my plant cause burn on there leaves as i was spraying once while the lights on my ec of my tap water is 0.48 and once i add mutz it goes to 1.78 so with the 0.48 off that is only 1.28 does that stand for cf 12 am i still running to much nutz i added 30ml A 30ml B with 10liters i did take 3 time =30liters res 90ml a+b?
cheers buds

That may not be the issue, like I said I really don't know ec conversions well just a thought.