My plants have some yellow leaves (entire leaf yellow) and upper leaves are turned upwards.

1. Is this a Magnesium Deficiency?
2. If so, how do I treat?

Thanks for any help!

Note the upturned leaves_______Note Yellow Leaves

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Second grow journal
First grow journal

yeah flush your plants with the right p.h water. not sure if you can add a certain chemical to stop this.... but im not 100% sure on this.

If a plant deficient you dont really want to flush it, thats only going to make things worse, to increase mg levels go to your local chemists and buy some epsom salts as this is a goor source of mg for plants. I got some from my chemists for about 1.25 and I've barely touched it.

je i thought to flush!!! how wrong i was! soz for wrong advice vancouv!!!

Its no problem, its common answer if in doubt flush it out, but with a deficiency you want to give it nutrients, if you give it water then your not going to make things better as there are no nutrients in there to counteract the deficiency

ohhhhh im getting it! and on a sunday morning!! wats up with me lol

it is early, ive just had lots of time to wake up, the kids have kept me up since about 5 this morning. Didnt get sleep till about 3 either. Mrs was out on the lash last night.

nite in wiv the kids!! was it a quiet 1?

Quiet one with a few biffs and a few grolsch's got some work done in the grow room though which was good.

Hi, are you growing in soil? What have you been feeding and how much? have you been PHing? What temps and humidity?