Leaves curling up?

[Guest GrowMad]

I have six plants under a 400hps lamp.. They are growing in soil. I have just switched over to 12/12 cyle. For the past week or so the leaves have started to curl up. They are not drying out and they are still nice and green. This is happening more on some plants than others...

 

I have been told this can be from overfertilising them so I have just been feeding them plain water ph 6.5.

 

Just wondreing if anyone else can help with what may be causing this..

 

Thanx

GrowMad

[Rattdogg]

Sounds to me like magnesium deficency, are the leaves curling in like little boats? If so buy some Epsom salts (coles/ woolies will have it), add it to your nute mix using about 1/4 teaspoon per 4 litres of water, this should fix the problem.

[Guest GrowMad]

Thanx for that RD... I'll get some Epson salts today and give it a shot... Much appreciated...

[Guest GrowMad]

each finger of the leaf is actually curling up like a spiral... I haven't got a camera unfortuately. I'll try the salts though...

[happyherb]

have real close look at her and see if she has any little bugs on her.

[Guest GrowMad]

I haven't seen any bugs on the plant... I will double check today when they wake up... I have a couple of magnifying glasses to check the plants with, and do this every day.

 

Thanx for that HH.. Let ya know what happens.