1 week old seedlings turning yellow & burn 100%coco

[Poldo]

Hi,
I am writing because my plants have same problems. This is first time that use coco.
I prepared the coco with RO water + Canna Ritzotonic 4ml / l, pH 5.7

I put the seeds of AK47 and Kalichakra about a week ago in pots 7x7cm.

All seeds are germinated.

I put al plants under 110w CFL for 20 / 4 and I feeding a light solution Bcuzz A+B 0.5ml/L + Diamond Nectar 1ml/L+ Vodoo juice 1ml/L +Canna Ritzotonic4ml/L ( EC 0.3 pH 5.7).

The second day I put all plants under HPS 400w and I feeding same solution.

On the third day I try a solution with EC 0.45 Because the leaves seemed to be a light green

The fourth day I noticed that the growth of some plants had stopped and almost all plants showed signs of suffering. (Yellow leaves)

The fifth day plants showed some bad signs..
I tested the run off and I found values to Hig . EC 1.5 pH 5.5.
I immediately thought to excessive fertilization and I immediately washed substrate with cannazyme + RO water.

The sixth day, I washed substrate again, and I found that the values of run off had returned to normal (EC 0.4 pH 5.7)

The seventh day I transferred plants to pots 2.5L and I feeding a solution Bcuzz A + b-Diamon Nectar - Humic - Vodoo juice with Ec 0.45 PH 5.75 for plant more suffering while
for other plants I feeding with a solution EC 0.6 pH 5.75.

Using only Ro water because my tap water has EC of 0.7 .. This tap water is usable?

What i do?
I thought about changing the feedinfg plan .
Ex,
1day Bcuzz AB + + Diamond nectar Humic
2day H20 + vodoo Juice
3day Bcuzz + Diamond Nect. Humic +
4day H2O + Mycorizze
5day Bcuzz Diamond + + Nectar Humic
6day H2O + Cannazyme +Canna ritzotonic

What do you think?

I have provided these nutrients:
Bcuzz A + B Coco
AN A + B Sensi grow and bloom (but I do not go well for the coconut)
Ghe Diamond Nectar
Canna Cannazyme
Canna ritzotonic
AN Humic
AN vodoo Juice
AN carboloar& BS Molasses
AN bigBud
AN Overdrive
AN Final Phase
Micosat F

Overwatering? Deficiencies? why this ??

 

[Guest]

I think it's a little early to be feeding all that stuff to 'em and it's a bit early for deficencies to be showing up in my opinion.I think you did the right thing by flushing them, then the next day you went right back on the food when you transplanted,I'd give 'em a good plain watering and disperse that food you gave them throughout the medium and hope they recover.

 

[MynameStitch]

You burned them to a crisp; you don't need to feed them plants anything at that stage; they have all they need in the cotyledons; the only thing you need is to provide them with water and micro nutes if you don't use tap water..... those seedlings may be toast
They don't need lighting that strong at that age; you want to keep them under fluros to help reduce stretching and to help promote faster growth, blue spectrum promotes better growth in veg stage while the HPS orange spectrum is better for flowering, you look like you may have also had the light too close.....

You went nuts with the feedings, omg that is crazy! Why did you feed all that food to your babies?

Would you feed a steak to a week old baby?

 

[Huggie bear]

Mine looked the same way and i made the following adjustments(growing in soil tho)
Switched from distilled to tap water.
lowered the temp in the cab by 5 degrees (75)
bumped humidity up to 45-50
the initial set of leaves on my strawberry coughs are toast but they have continued to grow and are looking fine on the second set.
I do have a mutant but its healthy so I will leave that alone.
Mine are also under 96 watts of T5 lighting with individual reflectors sitting about an inch below.
I know nothing about hydro but can you flush the system and switch to tap water if it isn't garbage?
I do not see what you temp/RH is so I can not comment but those tricks worked for my set up.

 

[Poldo]

You burned them to a crisp; you don't need to feed them plants anything at that stage; they have all they need in the cotyledons; the only thing you need is to provide them with water and micro nutes if you don't use tap water..... those seedlings may be toast
They don't need lighting that strong at that age; you want to keep them under fluros to help reduce stretching and to help promote faster growth, blue spectrum promotes better growth in veg stage while the HPS orange spectrum is better for flowering, you look like you may have also had the light too close.....

You went nuts with the feedings, omg that is crazy! Why did you feed all that food to your babies?

Would you feed a steak to a week old baby?

Ok,
I can't change HPS but is sylvania bulb (grow/bloom)
I stoped nuts...
I watered with H20 Ro + tap water (ec 0.2) yesterday but run off had EC > 3.0 and I don't undested this value... Last feeding with nuts had EC 0.6...Why ???? I

What have I do now?

 

[Poldo]

Mine looked the same way and i made the following adjustments(growing in soil tho)
Switched from distilled to tap water.
lowered the temp in the cab by 5 degrees (75)
bumped humidity up to 45-50
the initial set of leaves on my strawberry coughs are toast but they have continued to grow and are looking fine on the second set.
I do have a mutant but its healthy so I will leave that alone.
Mine are also under 96 watts of T5 lighting with individual reflectors sitting about an inch below.
I know nothing about hydro but can you flush the system and switch to tap water if it isn't garbage?
I do not see what you temp/RH is so I can not comment but those tricks worked for my set up.

Temp in my grow is 21°c Max 25°c light on (under HPS) - 15-18C° light off
Humidity is a problem.. with cool tube I have low humidity about 40% (min 35% max 65%) but I will bumped humidity with fogger.
Now I flush again with RO water/tap water mix.
You tap water have hight EC value?
I will post same now pics ...

 

[Huggie bear]

never even tested mine for values other then PH to be honest.
But I do run it through a pur water filter not that it does a whole lot.

 

[MynameStitch]

Ok,
I can't change HPS but is sylvania bulb (grow/bloom)
I stoped nuts...
I watered with H20 Ro + tap water (ec 0.2) yesterday but run off had EC > 3.0 and I don't undested this value... Last feeding with nuts had EC 0.6...Why ???? I

What have I do now?

DAMN!!!!!!!!!!!!!! reason for this is nutes had to have been in the mixture already that is why.........

ALso depending on what nutes you use...... some go in weak and take time to get released which is why you sometimes want to mix nutes 24 hours in advanced... mainly organic types.......

I would flush them out with a lot of water dude.... hoiw much water did you flush them with?
WHat size pots are these seedlings in?

They really should be in cups with there size........

 

[Poldo]

DAMN!!!!!!!!!!!!!! reason for this is nutes had to have been in the mixture already that is why.........

ALso depending on what nutes you use...... some go in weak and take time to get released which is why you sometimes want to mix nutes 24 hours in advanced... mainly organic types.......

I would flush them out with a lot of water dude.... hoiw much water did you flush them with?
WHat size pots are these seedlings in?

They really should be in cups with there size........

these seedling are in pot 1.5L and 2.5L now but they germinated in cups size.
Now them are on 10th day of vege.

Today I will flush them with a lot of water ( 1.5L of water for 1.5Lpot and 2.5L of water for 2.5L pot). I will use 2/3 Ro water+ 1/3 Tap water ( can I use cannazyme?).
I will check the ec and Ph value.


when can I start with nuts?which ec value?May I change way of feeding nuts?

I hope I will post nice pics...

 

[wygram]

What brand of coco are you using? Some cheaper brands have lots of left over salts from manufacturing, but since you were getting low ECs when flushing that is probably not the problem.

Feed them only A+B, with a bit of rhizotonic at no more than EC 0.6. Water just enough to wet the central area around the stem, the roots aren't everywhere in big pots with small seedlings. When they get bigger you can increase EC to 0.8. In two to three weeks you can begin measuring run-off EC and adjust your nutrients to how much yours plants are eating

 

[HeadyPete]

Good call wygram. That is an issue with coco.


Poldo, I would seriously hold off feeding anything until you see new healthy green top growth. There will be more than enough food in the coco even after you start flushing. You really fed them too much.

Those sprouts will take up to 2 weeks to begin growing normally again, provided you give all the proper care and make no mistakes.

Did I see you say that you were fogging your garden? If so, that needs to stop unless you have a very good reason for it.

I can not believe how many products you have and why so much. A lot of that stuff does the same thing, and it is expensive. You need a grow, a bloom, some calmag - especially because of the RO water, the GH nectar is good (the AN humic is basically the same) and maybe the BigBud when you get to that point and you can get through a crop from start to finish. You need PH up and Down, a digi PH meter and know how to check and adjust PH almost daily. Luckily coco is close to ideal ph, no lime is needed with CalMag, and no perlite is needed it drains so well. Coco also absorbs and holds nutes and water like a sponge, feeding it back slowly over time.

Bcuzz A + B Coco
AN A + B Sensi grow and bloom (but I do not go well for the coconut) - These are the same and redundant. I'd use the B'Cuzz.

Ghe Diamond Nectar - same as AN humic

Canna Cannazyme - unnecessary at this early stage

Canna ritzotonic - This is fine but go easy

AN Humic - same as GH Nectar

AN vodoo Juice - expensive and unnecessary

AN carboloar& BS Molasses - both carb energy foods that your plants can't use at this point and probably never unless you master your growing and your conditions, lighting etc are optimum.

AN bigBud - a good bud booster to use.

AN Overdrive
AN Final Phase - these are expensive and unnecessary

Micosat F - no idea what this is ???

Other than marketing reasons, I can't understand why AN has so many products and why they are ALL so necessary, other than for their bottom line. That is expensive stuff and it seems to me that a solid and simple nute plan that covers all the bases is all that is necessary. I've seen beautiful plants grown with shit and piss and love and they are as big, beautiful and impressive as anything AN can show me.

The point of home growing is to have much better weed and not have to pay the high prices dealers charge. You must be paying more per ounce with all those nutes than a oz on the street. Crazy...

Tap water is fine as long as there isn't any sodium or impurities. Mostly calcium, magnesium and iron, plus chlorine or chloramine for disinfection. Chlorine can be bubbled out overnight, but chloramine must be "shocked out", like a swimming pool, with chlorine. It's a hassle and not worth it. Get a water test or ask your municipality for an analysis of the water if you are concerned.

I am assuming you are a noob because I don't know any grower that would give that rocket fuel fert mixture to a seedling. I apologize if I am mistaken.

One last thing, I know English is probably your 2nd language, but the word you want is "nutes" as in "nutrients". "Nuts" is something else.


huggie, you risk getting powdery mildew with high humidity and lower temps. 75 is fine but it could drop lower at night or lights out. I don't see a reason to raise the humidity.

 

[Poldo]

I used bionova coco block.
I flushed again yesterday (Ro+ Tap Water) and run off had low EC (0.5) and PH about 5.9 .

Unfortunately Cal-mag is not available in my shop, so I use Ro water with tap water..

Tap water analysis :

Ca mg/L 90
Mg mg/L 11
Sodium mg/L 20
K mg/L 2.3
Cloruri mg/L 24
Nitrati mg/L 25
Sulphates mg/L 32
Bicarbonates mg/L 324
Conductivity microS/cm 620
PH 7.20
Hard F° 27

It's ok? can I filter chloramine with carbon filter(aquarium)?


Now same pics on the 10th day vege

Two pic with day light

What do you think of these pic?


Today I don't feed..
When can I start to feed nutes? I mix a new solution with A+B - Rhizotonic 2ml/L EC 0.6 PH 5.6
Can feed this solution every day?
When will I start using Diamond nectar and Humic?GH feed program started from seedling with 5ml/G

Can This feed program work?

1day Bcuzz AB + Rhizotonic 2ml/L EC 0.6
2day H20 + vodoo Juice
3day Bcuzz AB + Rhizotonic 2ml/L EC 0.6
4day H2O + Mycorizze
5day Bcuzz AB + Rhizotonic 2ml/L EC 0.6
6day H2O + Cannazyme (ligth flush)

After a week and If growth will restart I add GHE Diamond Nectar and Humic (half Dose)..

Micosat F = Tarantula Beneficial Bacteria + Piranha Beneficial Fungi

 

[MynameStitch]

I would not feed them for a bit, wait at least a week and the feeding regimen no way they will be killed you use that.
Right now worry about getting them to recover first before your feeding; I need to see how the plants recover to find out what and how much feed they can take since you blasted them so badly with the amount you had.

Those last 2 pics did you feed them anything and are these all the same strain?

You wash out that coco real good?

Problem is you are very set on following the directions on these nutes and you can't do that, AN you can, but only there 3 part system and there pack in nute where you just rip open a package and feed.

Rhizotonic should be used weak dosage once a week.

Voodoo juice is like rhizotonic, so pick one or the other.......

Not both.... amino acids,vitamins and minerals build up quickly with cannabis so don't use it often, space it out every week to 2 weeks.