Hello guys,

I know this keeps getting asked and asked but i been looking for 2 days and cant seem to get my head round what it could be, sorry got no camera either

I think i reading too much and getting no where, prob getting worse rapidly so need advice if anyone can please

My plants have been fine uptil now and i have just gone 12/12 bout 4 days ago but now 3 plants are going yellow at the bottom, one has gone half way up in bout 2 days. The leaves are yellow/pale greenish and today some are covered in brown blotches with the whole leaf being affected. from what i read it points to mg def. They have been fed 1ml grow and 2ml bloom so i dont think this is a N def but been reading conflicting threads and afraid im not too sure, as brown blotches could be overfeeding ? but i dont think so.

Can anyone help please as i intend to sort it out tommorrow but cant decide what problem actually is
I know it doesnt help not being able to get some photos up
Thank you

If the veins are staying green but the rest of the leaf is going yellow then yes it will be mg

If the leaf is going totally yellow including the veins then this is a N def

When any blotches or rust spots appear my first thoughts are always ventilation and environment

Owd

Thanx Owd saviour

The yellowing seems to start at the edges and work its way in towards the veins which are green but going lighter The blotches are going crispy ish, fast. This mornin not much, tonight alot

Might see if i can get a lead thing for my camera phone tomorrow and try and get a couple of pictures up if i can, make it easier.

Thanks again Owderb
Ps does the plants need alot of fresh air during the dark period ? as they outside during the day and in shed at night, was going to stick a fan in there.

yo...i agree with lack of ventilation as a cause along with increased heat from enclosure. add some venting, fans, check temps...may need to use a cooling device. Also have you checked for insects like mite? going from outdoors to indoors might have allowed them to get a foothold especially now they are without air movement, stressed...good luck! you will need to act quickly. since you are probably using soil in containers you may also want to consider a rootball leaching product like Clearex to freshen the roots up as you change the nutrients for bloom. always works wonders.