My AIs got something wrong...

[StonedGrunt55]

Hi all, my 18 day Aurora Indicas have brown spots ,turning yellow & purpil, slow growth please help!!

They'r under 24 hour of 5 x 23w flouros aprox 7 inches away.
Organic soilless substrate mix with black peat & perlite.
Fed them tapwater with adjusted ph around 6.5 but since i began seeing this i began using distilled water but their condistion gets worse...
Checked their soil's ph it came around the same as the distilled water.
Misting them daily & in the soil evry 2-3 days.
temps r between 78-82f.
veg-cab in wardrobe with 16 inch fan inside 24 hours.

I'm waiting till the soil dries abit & try to raise their water's ph abit coz the distilled water is marking somewhere around 5.5-6.0....

Am i doing something wrong????? coz i don't know exactly what they have..

 

[Core]

distilled water is't good it does't add anything of nutrients ...i guess she needs a good dose of nutes around 1 EC @500ppm's... ph'd at 6.0 coz of the soilless....but i already told you my thoughts.....and if you dont trust this suggestion....just try one

maybe some others will chime in??

 

[NorCalChron]

hmm im not positive but dont roots hate light? Maybe clear cups is hurting your growth??

 

[Lady 420]

You should be applying weak ferts

 

[StonedGrunt55]

distilled water is't good it does't add anything of nutrients ...i guess she needs a good dose of nutes around 1 EC @500ppm's... ph'd at 6.0 coz of the soilless....but i already told you my thoughts.....and if you dont trust this suggestion....just try one

maybe some others will chime in??

Yes i do! of course i trust u.... i already gave them distilled water & i'll transplant them in a few days time.. But u said nutes!! arn't seedlings NOT suppose to have any nutes b4 the first 2-3 weeks????? they'r just 18 days.. About ph 6.0 i'll just give them distilled then, now i'll keep them on distilled for a while .. hope to see some improvment!!!
Tnkx alot core, i always take some advice of yours hehehehehehe...

 

[StonedGrunt55]

hmm im not positive but dont roots hate light? Maybe clear cups is hurting your growth??

I got some clear cups & some white but in both cups they'r having the same problem...

 

[StonedGrunt55]

You should be applying weak ferts

Tnkx for checking Lady 420,
Weak ferts??? Like what?? small doses???? didn't know that seedlings can take some ferts... i easily get confused ph issues with defficencies...

 

[Core]

at about 3 weeks ...in my book its a small plant grunt...but that 2 the side....i never told you 2 give'm distilled water....it deprives them from nutes at fast pase....i said 2 lower ph with a flush...coz you had soilless ....if i remember correctly...giving soilles 6.5 ph water gave me problems 2...i gave mine a flush with nutes at about 600 ppm's and they took right off...

maybe just try on one plant...coz you can't flush'm 2 much...
and you will only get def's from bad ph imo....

 

[StonedGrunt55]

at about 3 weeks ...in my book its a small plant grunt...but that 2 the side....i never told you 2 give'm distilled water....it deprives them from nutes at fast pase....i said 2 lower ph with a flush...coz you had soilless ....if i remember correctly...giving soilles 6.5 ph water gave me problems 2...i gave mine a flush with nutes at about 600 ppm's and they took right off...

maybe just try on one plant...coz you can't flush'm 2 much...
and you will only get def's from bad ph imo....

sry, i know i'm getting confused in answering comments hehehe.. i thaught i'd give them distilled coz evryone says it has a good ph range, TO TELL THE TRUTH they got a little worse with it... i'll flush them tomorrow then ( they'r still wet) to lower ph. But i'm not gonna apply any nutes b4 3 weeks, maybe i should try a little dose on 1 of them like u said, & thats what i'm gonna do...
tnks core.. i'll see to it that i'l flush them gently & lower their ph.

 

[Core]

distilled is neutral..it has ph of 7.0...it shoud't hurt them 2 much but it deprives the nutes in the soil verry fast ime.....and in this case you have't been feeding ...that explains why the leaves look like that...atleast in my world....

 

[Blackvelvet]

Does this look and sound familiar???

Does this look and sound familiar???

ok for day 18 i think that these plants are not doing well. i think i might of over watered them. i added some pics to see what everyone thinks. they havent really gotten much bigger sence day 14 when i left for my vacation. the leaves are droopy and under turned some of them are yellow and look like they are dying. any suggestions? all 3 plants look the same as this...

After he applied weak fertilizer, they did just fine.

 

[I.M. Boggled]

Give her a wee bit of nutrients..

Give her a wee bit of nutrients..


1/8 to 1/4 strength to start will generally be otay for babies first feeding.
What fertilizer/nute do you plan on using?
Do you have your ph tester kit and ph adjustment chemicals handy and ready to go to work?

Vegetative phase of growth

When true leaves have formed, the plant begins the vegetative phase of growth.
During the vegetative phase of growth, the plant directs its energy resources primarily to the growth of leaves, stems, and roots.
A strong root system is imperative, as it is required for strong floral development.

During the vegetative phase of growth, cultivators generally employ an 18 to 24 hour photoperiod, as the plants grow more quickly if they receive more light, although a warmer and cooler period are required for optimal health. While no dark period is required, there is debate among cultivators as to whether a dark period is beneficial, and many continue to employ a dark period.

Marijuana cultivators employ fertilizers high in Nitrogen and Potassium during this stage, as well as a complete micronutrient fertilizer.
The fertilizer is generally mixed with water, and then applied to the plants, usually every other or every third watering.
The cultivator must avoid over-fertilizing the plants, especially when they are young, or the plants will suffer from nutrient burn.
As the plants grow larger and stronger, they are able to tolerate a stronger nutrient solution, and the strength of the fertilizer is gradually increased.

CANNABIS CULTIVATION (Overview) fyi

 

[highallthetime]

Misting them daily & in the soil evry 2-3 days.
temps r between 78-82f.

Only mist when the lights are off or else you get burn marks that are mistaken a lot of time for nute burns. Really from experience they can take as much nutes as you can give them but don't over do it. Also temps should never go over 79* this could cause some serous problems too. Get a EC or TDS meter if you are worried about over feeding them. I know some people here will say stay away from Mic Grow fertilizers but they look like they could use some. If you water the soil then the plants don't need misting. Do one or the other. 1 - 2 hours after light is off. When using 24 hr light cycle. You might wont to lean them back 30 mints each week or so. Intel you get to 12/12. To much change at one time can cause the healthiest plant to just up and die.

 

[StonedGrunt55]

distilled is neutral..it has ph of 7.0...it shoud't hurt them 2 much but it deprives the nutes in the soil verry fast ime.....and in this case you have't been feeding ...that explains why the leaves look like that...atleast in my world....

It makes alot of sense & i think thats what happened . The 'Cobra' Distilled i'm using marked about around 6.0... but i'm trying 2 lower their ph first & apply a tiny bit of nutes too. I'm thinking of giving them a dark period since they havn't had one yet...
Tnkx again my freind!

 

[StonedGrunt55]

Why would you be so adamant about not feeding them?

The reccomendation of not feeding when they are seedlings is just that, a reccomendation.....if the plant is telling you its hungry....feed it.

At least thats what I would do, or feed half of them, or one, or something other than asking for help and then saying no screw that I wont feed them!

Have you grown before and had this problem?

Bignugget.

No during seedlings never had these problems b4... Just like u said i was recommended not to feed seedlings rather than water but i didn't know i can apply a little.. I'll try to lower their ph abit & apply a small ammount of some weak nutes, i hope they get back
Tnkx for your comment!

 

[StonedGrunt55]

After he applied weak fertilizer, they did just fine.

Some look like this & some got spots .... tnkx 4 the tip

 

[StonedGrunt55]

1/8 to 1/4 strength to start will generally be otay for babies first feeding.
What fertilizer/nute do you plan on using?
Do you have your ph tester kit and ph adjustment chemicals handy and ready to go to work?

I have a ph test-kit with ph + & ph- and for nutes i'm waiting for my Biobizz grow,bloom,topmax products... they should be here soon its been nearly 2 weeks now since i ordered them..
I'm regualating their ph & trying to lower it abit. Then i'll start giving them 1/8 of some weak nutes i got, sounds a good idea...
Tnkx for checking !

 

[StonedGrunt55]

Only mist when the lights are off or else you get burn marks that are mistaken a lot of time for nute burns. Really from experience they can take as much nutes as you can give them but don't over do it. Also temps should never go over 79* this could cause some serous problems too. Get a EC or TDS meter if you are worried about over feeding them. I know some people here will say stay away from Mic Grow fertilizers but they look like they could use some. If you water the soil then the plants don't need misting. Do one or the other. 1 - 2 hours after light is off. When using 24 hr light cycle. You might wont to lean them back 30 mints each week or so. Intel you get to 12/12. To much change at one time can cause the healthiest plant to just up and die.

I started misting them daily & use to add abit of water each time i see the soil dries.As for temps i know what they can do , i had temps this summer from about 86-91f sometimes even reached 98f my plants were half burned then i baught an a/c for them & they did fine again.. I'm trying to give them a dark period while they'r a bit sick, maybe 6 hours but i'm not sure how much.
Tnkx for stopping by!

 

[Levitikuz]

hey i think they look a little over watered also.....
curled down leaves like that are usually a big indicator of over watering

good luck

 

[StonedGrunt55]

hey i think they look a little over watered also.....
curled down leaves like that are usually a big indicator of over watering

good luck

yes they r a little, i had to check some ph readings but now i'm waiting till they dry b4 applying some weak nutes with lower ph...
Tnkx!