Vegging under 26w Secret Jardin LED Light

[knocker powell]

hello all - i wonder if i could pick your brains. relatively new grower trying to start off some Think Different under a 26w Secret Jardin vegging light. All has been going well but now some of the leaves are yellowing and taking on a troubling appearance - being a newb am not sure whether they are suffering from some kind of deficiency,nute burn, or just being too near the light - which I didn't think could happen because it's LED and they don't get too hot. Currently the lights are sitting about 4/5 inches above the plants running 18/6. here are a couple of pics. any help would be more than gratefully received. Many thanks, KP.

 

[namvet25]

What type of soil? What type of nutes and feeding scheduale?

 

[knocker powell]

What type of soil? What type of nutes and feeding scheduale?

hey namvet - thank you for stopping off, sir! soil is Mills Light Mix http://mills-nutrients.com/portfolio-items/mills-lightmix-soil/ I introduced some Formulex nute solution http://www.growthtechnology.com/product/formulex/ as advised at 5ml per litre. I have tried to have a light touch with my watering regime and am giving them it every other day in small amounts. Do you think I might have introduced the Formulex a bit too early and that they're suffering from too much nutes?

thank you, sir!

 

[namvet25]

There not that bad but I would cut the dosage down a little until she gets about 30 days old then try and go back to higher dose.

 

[knocker powell]

good call. thank you namvet!

 

[Waira]

...I'm with Nammy on easing up on the nutes, but I'd like to know the N-P-K #'s, and the dosage used,... The light mix soil I couldn't get info on, but likely it's similar to others of this type, and you can start nutes sooner depending on how they perform in the next couple weeks,... I advise you find a way to check out the soil pH too, particularly if the problem persists... do you have a pH meter or quality soil pH probe?

 

[knocker powell]

Hey Waira! Thank you so much for your reply. Yes, the consensus seems to be that it's too much nutes too soon. The NPK of Formulex is 2.4 – 0.9 – 3.4 I need to pick up a soil meter but I have just started Ph-ing my water. It is 8 from the tap/faucet and i've been taking it down to around 6.

thanks in advance for your help, KP.