1st Grow (Please Look)

Dutch Passion Blackberry Kush autos

RDWC
230L System
V60 Air Pump (60L pm)

2.4 x 2.4 Tent
2x 600w HPS (set currently 30" from canopy) 18/6
6" Exhaust fan on 24/7
Passive Intake
Oscillating fan on 24/7 good flow on canopy

Temps sit around 24C - 27C (During day)
17C - 20C (Night Time)

Relative Humidity sits around 38% - 45% (during day)
45% - 60% (during night)

Planted 10th March
Popped up 13th March

First res was mixed at 650PPM (my mistake)
Second and Third Mixed at 450PPM

H202 added Daily at 1ml per litre 13% Food Grade



Now if any of you experienced growers could offer up some advice on the state of these plants it would massively be appreciated.

I have noticed some of the new growth is quite clawed and the leaves do feel somewhat dry but not so bad lower down. my first thoughts are Nitrogen Excess? i am only feeding them 450ppm. using GH Trio plus Shogun Silicon and Katana Root Boost. Following the feed chart attached

I use gh glora serries aswell. Try the chart with ml measurements instead.

also dont go full strength start off week 1 at 50% then week 2 at 60 then decide wether you need 75 or not at the following weeks feeding. Thats what i do in drain to waste at least. If you use the tsp guide im pretty sure you use more nutrients resulting in burn and lock outs. On another note that chart you’re using says to add micro first... thats not the case if you use silica, silca should go first. That then raises your ph way up high. Before you add micro you should lower your ph to around 6 or 7 to prevent the nutrients from crashing out of the solution. After that you should add micro then grow then bloom then your rooting additive. Finally you should ph your water againe

Billytheluther said:

I use gh glora serries aswell. Try the chart with ml measurements instead.
View attachment 4873524
also dont go full strength start off week 1 at 50% then week 2 at 60 then decide wether you need 75 or not at the following weeks feeding. Thats what i do in drain to waste at least. If you use the tsp guide im pretty sure you use more nutrients resulting in burn and lock outs. On another note that chart you’re using says to add micro first... thats not the case if you use silica, silca should go first. That then raises your ph way up high. Before you add micro you should lower your ph to around 6 or 7 to prevent the nutrients from crashing out of the solution. After that you should add micro then grow then bloom then your rooting additive. Finally you should ph your water againe

Click to expand...

Hi mate, ive got that chart and a few others. was torn between which one to use. have you had good results using this one?

and the way ive been mixing them is, Silica(ph)Calmag,micro,grow,bloow,root stim

Something doesn't look right near the top new growth. I'm seeing some darkish/brownish shit like rot. How do the roots look?

Samsquanch420 said:

Hi mate, ive got that chart and a few others. was torn between which one to use. have you had good results using this one?

and the way ive been mixing them is, Silica(ph)Calmag,micro,grow,bloow,root stim

Click to expand...

Sound like your running them correctly, and no i havent used that exact chart i run drain to wate so i use this one
But i guess its the equivalent.

Billytheluther said:

Sound like your running them correctly, and no i havent used that exact chart i run drain to wate so i use this oneView attachment 4873537
But i guess its the equivalent.

Click to expand...

Ah right yeah i guess it will be. cheers for the advice mate

are you feeding full strength? Your plants look established to a degree, if you were running full strength with no burn uptill now im surprised.. are they clones you got maybe? Have you been checking your ppms? If you follow the chart itll blast you from low to high ppms real quick, wich is why you gotta give them a lower %

give that chart a try and give them a 50% feed. Youll have to make larger batches of water for accuracy but you can leave it a few days just make sure you re ph it when watering. I like using 5gallon jugs, so if the chart says 4-5-1 you multiply by 5 so
20-25-5 at 50% 10-12.5-2.5
If you up to 60% you bust out a calculator and do 20x.6=? 25x.6=? 5x.6=?
thats why using larger amounts of water comes in handy. Youll need a couple of large syringes aswell to measure your mls

Billytheluther said:

are you feeding full strength? Your plants look established to a degree, if you were running full strength with no burn uptill now im surprised.. are they clones you got maybe? Have you been checking your ppms? If you follow the chart itll blast you from low to high ppms real quick, wich is why you gotta give them a lower %

Click to expand...

Ive grown them from seed, and the first feed i made them was around 650ppm (full strength) and then subsequently i changed after doing more reading to the chart i posted above that worked out at 450ppm. then i noticed the clawing ect a few days later presumed it was nitrogen excess so have now halved it and they are currently on 250ppm in there 4th week of veg. which im not to pleased about but not sure what else i can do at this point. leaves are abit dry and the growth has slowed. lifted the lights up again today to about 35" and turned them down to 400w.

Billytheluther said:

give that chart a try and give them a 50% feed. Youll have to make larger batches of water for accuracy but you can leave it a few days just make sure you re ph it when watering. I like using 5gallon jugs, so if the chart says 4-5-1 you multiply by 5 so
20-25-5 at 50% 10-12.5-2.5
If you up to 60% you bust out a calculator and do 20x.6=? 25x.6=? 5x.6=?
thats why using larger amounts of water comes in handy. Youll need a couple of large syringes aswell to measure your mls

Click to expand...

i mix mine in x2 220L drums 100L in one and 125L in the other

Thats a lot of water.. do you stay on top of the ph?
I think you could go a little higher on you ppms but give it a shot it sounds like you’re doing everything right, they should bounce back up soon enough

Billytheluther said:

Thats a lot of water.. do you stay on top of the ph?
I think you could go a little higher on you ppms but give it a shot it sounds like you’re doing everything right, they should bounce back up soon enough

Click to expand...

Yeah checked multiple times through the day, and its an rdwc hydro system so everything is checked from the main res thats outside the growtent. and yea i hope so man