Grow Mediums 1st time hydro, burning - no growth PLEASE HELP

[absinthe]

hi! this is my 1st time indoor + 1st time hydro + 1st time auto!
ghe aquafarm
hesi hydro starter kit
hortilab 60 tent
phytolyte 400w autoflowering

sweet seeds black cream.
late august germinate, 02-09-13 place it on hydro.
i thought i have too much nutrients, so i took out half of the water and add some fresh
so now i have half strength. ph is ok.
temp is high, about 36c at day, 28c at night ( lights of) humidity 26 - 37
do you think looks like a temp problem or nutrients?

 

[KsjAuto]

It looks burnt
36c that is very hot. 26c should be your sweet spot during lights on
if your feeding 1/2 strenght nutes. that's should be about 1/8 strenght instead. less is more.. its better to under feed rather to over feed
if you look at the tips of the leaves they look crispy = to much nute
you should flush the grow medium with ph water to get rid of the nutes in it.
make a fresh res with plain ph water see if she bounce right back
and then ad some nutes but on 1/8 strenght maybe less
Thats my 2 cents
there will be more peeps to give you some better qualified answars so stay tuned
Peace

OHH
take a look at this thread it's almost the same system
https://www.autoflower.org/f5/northern-lights-blue-auto-waterfarm-led-17947.html
nice info there

 

[Super Mario]

What he said. Also did you start your seeds directly in the pebbles? Next time try starting them in Rockwool. Rockwool sucks, but the delicate roots like it better that age. Also the plants like to use up the nutrients already stored in seeds, don't feed seedlings.

Good luck to you! :High 5:

 

[absinthe]

thanks a lot for your advice! i wiil do this tonight. i hope she will get detter!
about the tempeture there is not enough i can do. i allready have 1 canfan and a fan blowing the room + the door
of my tent is always open. outside temp is about 36c and in house 28. it is still summer here. i think weather will cool
down and of october.

 

[absinthe]

i did started in rockwool. it is not visible at pictures. i will make a new fresh res. tonight.
thank you for your advice!

 

[absinthe]

hi, as you can see i did everything, took out old solution, clean up res, place new water.
i also removed light 400w hps to try to cool down temp and it works. humidity also got better!. i replace the bulb
with cfl 45w. i think i will keep it for some days to see if she will get better.
am i thinking wrong? i ll buy a bigger one from monday.

 

[KsjAuto]

The burnt leaves won't get better.
The new growth should be better. takes a couple of days.
Hope you also cleaned the lega. (pour ph'ed Water over the balls)
If you know What you base Water ppm/ EC is, it's Easy to see when the balls are clean of nute. Tjeck the Water Comming thru after pouring Water over the balls.
Well live and learn
Hope She pulls thru
Peace

 

[KsjAuto]

Did she recover ?
Peace

 

[Soylent Green]

With that temperatures you need more cooling or go led!

 

[absinthe]

yes she did!!! last night i clean the res again and put new fresh water.
distilled water 12 liters
HESI HYDRO GROW 10 ml
ROOT COMPLEX 15 ml
SUPER VIT 3 drops
POWERZYME 7 ml
PH 5.3
PPM 75
new cfl 75 watt
the temp stays low and hum is better.
i also germinate a new one. DINAFEM CRITICAL+ AUTOFLOWERING
i dont know what to do with the light. if i use the 400w phs i have the temp will go over 30c to 35c again.