Help....leaves slight yellowing with small brown spots along the veins

[stealthbonger]

Ive just notice what looks like either a manganese or calcium deficency.
Theres some yellowing to some of the higher fan leaves and small brown spots along the veins of some of the leaves....

what would be the best course of actions?
should i flush the soil then feed? would i need to flush then wait a day to feed? or do i flush then feed straight away?
im using bio bizz, grow, bloom and top max at the moment.
I have epsom salts, should i add some to the feed?
im using plant magic plus soil

the plants are well into flower (RQS northern lights autos) on day 55

Any help much appreciated.

[IceCalibur]

Hi stealthbonger, we're gonna need some pictures and answer as many of these questions as possible please ;

Soil or hydro or coco:

Strain:

Photo or Auto:

plant age:

pot size:

has it been repotted? and when?:

soil type:

nutes or additives used and how often for soil:

Air temps (max min):

Res temps (max min):

humidity:

lighting type and wattage (hps, led, cfl):

Light schedule:

ph level:

EC (hydro and coco only)

Background EC.

feed schedule and nutes (for hydro and coco)

anything else you think may be relevant!

[stealthbonger]

Soil or hydro or coco: soil plant magic plus

Strain: RQS Northern lights auto

Photo or Auto:auto

plant age:55 days

pot size: 11L

has it been repotted? and when?: No

soil type: plant magic plus

nutes or additives used and how often for soil: Bio Bizz , GROW 2ml, Bloom 3ml, Top max 3ml

Air temps (max min): 22.1 - 26

Res temps (max min):

humidity: 51%

lighting type and wattage (hps, led, cfl): LED 400W SKYLINE

Light schedule: 24/0

ph level:

EC (hydro and coco only)

Background EC.

feed schedule and nutes (for hydro and coco)

anything else you think may be relevant!

ONLY OCCURRING ON ONE PLANT, THAT IS SLIGHTLY AHEAD THAN THE OTHER.

[Le chef]

Hi stealthbonger that looks like it's getting too much Ng those leaves look very dark 2ml grow is too much and 3ml top max is way too much, 1ml grow and 1ml to 1.5ml top max with bloom at 3ml, are you feeding with every watering and how often.

[stealthbonger]

Hello mate, i should have explanined that im adding the nutes to 5L of water, im feeding with every watering and watering every 36 hours roughly,
around 1.5L of water/feed each plant is getting every water.

So your think Ng burn? is the issue?

[Le chef]

Hello mate, i should have explanined that im adding the nutes to 5L of water, im feeding with every watering and watering every 36 hours roughly,
around 1.5L of water/feed each plant is getting every water.

So your think Ng burn? is the issue?

I did after reading the feeding schedule thinking that was for 1 litre of water, I'm still in the learning stage but have had issues in the past with Ng toxicity and it turns the leaves dark green, looked like the problem I had in the past.

[MrC]

Hi mate, don't panic too much. Like I recently discovered, excess and deficiency have similar telltale signs, looked about a bit and lookin bk on my issues it could be mag/cal issue. Can't be 100% but it's what I'd be lookin at

Led sucks out mag anyway. Is your water soft or hard and have you added any calcium products?

[stealthbonger]

Hi mate, don't panic too much. Like I recently discovered, excess and deficiency have similar telltale signs, looked about a bit and lookin bk on my issues it could be mag/cal issue. Can't be 100% but it's what I'd be lookin at

Led sucks out mag anyway. Is your water soft or hard and have you added any calcium products?

Hi there m8, yes i was panicing as im more than half way through flowering... dont wanna mess up now
the tap water is classed as hard here, heres a guide:

Calcium:
72
mg/l Ca
Magnesium:
6.8
mg/l Mg
Fluoride:
0.06
mg/l
Total Hardness:
208
mg/l CaCO3

i havent added any calcium products as yet, what would u recomend to use?

[MrC]

Hi there m8, yes i was panicing as im more than half way through flowering... dont wanna mess up now
the tap water is classed as hard here, heres a guide:

Calcium:
72
mg/l Ca
Magnesium:
6.8
mg/l Mg
Fluoride:
0.06
mg/l
Total Hardness:
208
mg/l CaCO3

i havent added any calcium products as yet, what would u recomend to use?

NONE lol, that was my mistake, I'm in H/W and added magne-cal. Hold on a bit so we can get a concrete answer before throwing anything in. If it's a mag deficiency then epsom salts usually. But it's not gonna kill your plant in a matter of days. If it's deficiency then the plant should just be taking any nutrients it needs out of the leaves atm.

[stealthbonger]

thank u for help so far m8!