Can someone please help identify the problem with this plant?

[Aucklander]

Jiffy pellet placed in organic soil mix around 2 and a half weeks ago. 

Received plenty of light and wind movement. 

 

Appeared some problem on the first leafs, as in the photo. 

Appreciate if someone can help identify the problem.

 

thnx

[micmac]

Have u fed it yet?

 

 

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[The Stoned Jester]

That's what I was thinking too micmac, yellow is a deficient colour, lacking something, check this chart.

 

Edited May 23, 2018 by The Stoned Jester

[Aucklander]

Have u fed it yet?

 

 

Thought it is early to feed nutrients, as its in organic soil with some nutrients already. the watering before the last I mixed half dose biobizz grow & gogo juice. After that watered once without nutrients. I use a soil moisture meter and try to keep the soil near the root moist, but the top is nearly dry.

[fredster]

Might be a magnesium defiance! Look at the purple on it

 

 

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[micmac]

Nitrogen deficiency, ph lock or wrong nutrients for medium

Looks like it might be growing out though

Check the colour of new tips, if they r coming back to normal it’s ok already overcome deficiency

If they start to turn yellow with purple stems more than likely ph lockout, u will need to change medium or feed soil nutrients

 

 

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[xtro]

how cold is the area you have it

[Serrated edge]

Yeh the purple is from colder temps.

 

I often see weird shit on seedlings ..but if I'm doing the right thing to the plants it comes good ..

 

So as long as ph and food strength is ok they grow out of whatever was bothering them,,,,and they come good .

 

Sometimes I gotta cut the food strength

 

just watch that yellowing ,in case it continues.

Edited May 24, 2018 by Serrated edge

[Aucklander]

thanks for the tips. 

 

This is how she looks like today (please see attached photo); overnight leaf's tips curled upwards. the discolouration is larger on both, newer leafs are yellower too... 

it's got like white spots. 

 

the light was a bit too close before (lifted yesterday back to 60cms), light is a led with par value of 450 at 26 inches height. 

 

its not cold at all, more on the hot side at around 27/28 degrees.. 

 

humidity is on the lower side at around 48%-ish... being a challenge to keep humidity up with the exhaust fan on...

 

this is a og kush strain.... weird thing is, its sister aside is a northern light strain and she has dark coloured leafs, not extended for light like this one, the 2 are growing way too different... 

 

what do i do? replant to a bigger pot? give nuts? don't give nuts? the tip curled upwards, so is it asking more light? too many variables dayyum.

Edited May 24, 2018 by Aucklander

[Serrated edge]

Don't worry about the bottom leaves they are fucked anyway ,most likely will keep dying of and fall .

 

I'd give it just water and see how she goes ,,enough water for plenty of runoff.see how she looks in a couple of ,or few days.

 

id check the very first bit of runoff for its ph ,,it shouldn't be showing colour if it's that hot,,,so maybe its way out in the medium ,,,what exactly is the medium ?

Edited May 24, 2018 by Serrated edge