Is this Magnesium (Mg) deficiency or something else please help me,(pic 1)
I also have red fan leaf stems on one of the other plants,(pic 2) Phosphorus(P) deficiency?
I am using ionic bloom nutes with no other or supplements.
They are under (left to right pic 3 150w hps, 125w envirolite flowering bulb, 150w m/h)the front left is the one with red stems and the front right is the one with bad leaves mainly on the bottom of the plant.
i am only using 4ml of nutes per litre of water.
should i get some epsom salts?
Oh they have been in flowering for 4weeks and 1day.

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help me please someone
also they are in soil cheap asda compost + 20% perlite
temp is 82 humidity is 50-55% (65% after watering)
i think the ph is about 6.0-6.5
i watered them today ( with nute 5ml per litre)then noticed the marks on the leaves just after
i watered them last 5 days ago (with same nute but at 3ml per litre )they were dry last night left watering till today

before that they had plain water for 2 weeks as they were transfered into bigger pots

bump bump anyone

bump bump this was giving to my by Enigma!

For all RIU'ers:

Plant Nutrient disorders in hydroponics, symptoms, causes, cures, fo

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Everything I type, post, and talk about here is completely false, and is no way true.

i have read a bit on plant problems and want some type of help, don't want to do any more harm to them i think its a mg problem solved by epsom salts but would like some conformation on this ANYONE

ur best bet is to hit up a hydro store around ur area. Ask them for a nute or supplement etc.. that is high in mag cause ur plants have mag def.

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Everything I type, post, and talk about here is completely false, and is no way true.

Thats if thats ur prob. I'm checking out ur pics right now. It could be nute burn. It could be nitrogen def.. are u using nutes what kinda nutes whats the npk etc.

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Everything I type, post, and talk about here is completely false, and is no way true.

i am using IONICS BLOOM nutes i can't find the npk for them they were recommended by my local hydro shop as being good for a first grow as they are one part they are meant to be mixed at 7ml to a litre i have used it at 4ml per litre all the plants are fed at the same time and the same mix

You have a calicum deficency my man.. i Noticed the red spots almost rust like. thats def calicum

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Everything I type, post, and talk about here is completely false, and is no way true.

thanks mmclean3 i found my nutes npk, its ionic bloom npk of 4 5 8 i have not used any supplements and don't know what nutes are in it i.e baron magnesium ect