is this nute burn?

Some of my babys have brown tips and going crispy, is this nute burn??

Yes check your levels, takes time sometimes to dial in.
Every time I grow a new strain I Need to adjust my mix,
Until I zero in on the plants happiness.
Nute burn, lockout, overwatering. Happens, then after a few runs
With same strain your on automatic time.

New leaves look fine. So why are you concerned?Meaning what have you been feeding? Never feed full strength as directed on a bottle or box.Not marijuana.

Ive only been feeding them 0.7 ec max thats including my water which is just over 0.1 ec or 101ppm (eutech), i started with 0.3.. im in coco coir and perlite.. ph 5.8.. ive been researching and the closest i can find is phosphorus def, i added cal mag to my tank from day 1 on the advice of someone else and it seems that they didnt need it... im feeding under a quarter of the reccomemded dose of canna a and b... and from looking at pics and seeing that its started on my oldest leafs makes sense i may overfed them cal mag

hotrodharley said:

New leaves look fine. So why are you concerned?Meaning what have you been feeding? Never feed full strength as directed on a bottle or box.Not marijuana.

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The fact that all my leafs are not healthy is my problem there only 17 days old, this shit shouldnt be happening, its confusing because ive been very strict with my nute plan, even for this stage my ecs very low.. the canna grow guide says i should be feeding around 1.1ec, the bottle reccomendation adds upto around 1.8... im doing 0.7.. my plants look nice but im worried that whatever it is it will spread if i dont sort it..

Up your feeding to around 1.0 EC.You know to feed and then water twice (my routine only)? They are surely not burned though.

hotrodharley said:

Up your feeding to around 1.0 EC.You know to feed and then water twice (my routine only)? They are surely not burned though.

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The tips are burned though?? Do i really want to be upping my ec just yet? Like i said before i think its to much calicium as ive found out even though my waters soft its treated with calcium, so adding cal mag along with canna nuted having cal mag, and judging by the articles ive read yellowing on older leafs which turns into brown crispy leafs, which spread up the plant is a phosphorus def, and the only way to sort it is to flush my girls but i have no means to flush such big pots, for one it would take 460 litres of water to flush my full crop.. the only way i could do that is to flush each one in the bath tub but that meams no ph adjustment so id be giving my girls ph 7.2 full of chlorine..

ItsJustMe84 said:

The tips are burned though?? Do i really want to be upping my ec just yet? Like i said before i think its to much calicium as ive found out even though my waters soft its treated with calcium, so adding cal mag along with canna nuted having cal mag, and judging by the articles ive read yellowing on older leafs which turns into brown crispy leafs, which soread up the plant is a phosphorus def, and the only way to sort it is to flush my girls but i have no means to flush such big pots, for one it would take 460 litres of water to flush my full crop.. the only way i could do that is to flush each one in the bath tub but that meams no ph adjustment so id be giving my girls ph 7.2 full of chlorine..

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I see no whitening of the newer leaf tips.Yellowing of lower is often due to the plant pulling needed nitrogen from it.

hotrodharley said:

I see no whitening of the newer leaf tips.Yellowing of lower is often due to the plant pulling needed nitrogen from it.

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I doubt its nitrogen, ive had nitrogen problems in the past and the leafs turn a whole different type of yellow, and take a while to crisp.. these seem to have really slow spread which has been there since day 1 on the baby leafs.. but as i went into my grow room i noticed it had spread to the tips of my first 3 leafers.

I must be really blind because I'm not seeing anything but possibly some heat stress in the pic with all of them in it.

Heres a better pics

hotrodharley said:

I must be really blind because I'm not seeing anything but possibly some heat stress in the pic with all of them in it.

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Maybe i just worry to much lol im still a noob, so when i challenge your advice i dont mean it in a bad way i just want my girls to be perfect.. and all your advice is appreciated

Not every single leaf needs to be perfect,nor more then likely by end of the grow it WONT be perfect....doesn't look Phosphorus def to me imo...probably heat stress like hot rod said...just look at new growth..looks fine...just watch the spread.......you need to slow down a bit, let it grow...your going to have a heart attack geesh..

Don't just give your nute recipe......soil,lights Temp, RH etc...just because you think it's phos. Def, doesn't mean it is

wiethe20 said:

Not every single leaf needs to be perfect,nor more then likely by end of the grow it WONT be perfect....doesn't look Phosphorus def to me imo...probably heat stress like hot rod said...just look at new growth..looks fine...just watch the spread.......you need to slow down a bit, let it grow...your going to have a heart attack geesh..

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Well its defo not heat stress the temps dont go over 80f, its not nute burn because that starts on the newer growth.. ive found out that me been to careful with my nutes has caused a def.. its not a micro nute def, so leaves N P K Mg, its defo not cal mag, and its doubtful its nitrogen!! The symptoms are yellowing from the tip which spread down the lower growth until the tips turn brown and crispy, while the rest of the plant looks fine, so ive upped my ec to 1.0 and im betting the extra P in Part A sorts my problem out!! You cant tell me to chill when theres a problem thats spreading, what sort of a lazy ass would i be if i just let it spread without trying to find out what it is, ive had defs in the past and ive seen them just start on the bottoms and it spreads unless you figure it out.
My humiditys at 65%-70% Day and Night
Temps at pot level 79f room temp 80-81f
I like to keep it a little more humid and warmer through veg but i know 81f wont heat stress it.
I know its a problem with the way im feeding them, just need to figure it out..

What are your lights? And I bet if you "chilled" you'd figure it out, what type of soil your using.....you don't have to tell me you're ec again or ppms I don't bother with that

wiethe20 said:

What are your lights? And I bet if you "chilled" you'd figure it out, what type of soil your using.....you don't have to tell me you're ec again or ppms I don't bother with that

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Well if you bothered to read you would know ive already stated, coco coir/perlite 70/30.
PPM feeding is vital when using Coco coir, ph is 5.8-6.0...
I dont need to chill.. im happy with the way my girls look but im not about to sit back and watch it spread, and i guarentee i will figure it.

I agree with hotrod....definitely not burned. She looks hungry. I would up your ec a smidge.

wiethe20 said:

View attachment 3512630

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P looks very similar but so does the chlorine def, i do use tap water, (soft water) i always let it sit for 24 hours before adding nutes then another 24 hours before feeding.. i do hear you wont get rid of all chlorine no matter how long it stands for.