I need help!!!!!!! I have no clue to solve.

[Panch]

I have tried everything and still having problems. PH is kept at 5.8-6.0. Temp is around 75-90. Growing in coco. Only some plants are effected. These started out really nice and healthy. Theve been in flower for three weeks. They are Blueberry, Purp Dsl, Shishkaberry. They start losing the dark green and leaves start looking burnt. Starts with larger leaves. I had a mite problem, I took care of that and it is still getting worst. I thought it might need more Mag started that a week ago but still worst.

 

[Marlboro47]

Magnesium is the fourth most important nutrient and used in larger amounts by cannabis plants. It is also one of the more common deficiencies indoors, due to several factors that can occur which inhibit the uptake or availability of Magnesium. Growers can act preventively by adding dolomite lime to the soil mix or watering/spraying their plants with a solution of Epsom salts. If you have vigorous plants and quality horticultural grade soil with a good pH value (6.0-7.0), then it is unlikely that you will get any Magnesium deficiency in your plants. Also hydroponic setup's seldom experience Mg deficiency since complete NPK fertilizers offer a sufficient supply of this mineral.

Causes:
Acidic soil (pH 5.0-5.8 ).
Cold and water-logged/soggy soil.
Over-fertilization (nutrient blockage especially from high amounts of nitrate, potassium, and calcium).
"Hard" water with high calcium content can bind Magnesium in the soil (mix your tap water with osmosis water).
Symptoms:
First indications resemble nitrogen deficiency: the lower to middle leaves yellow between the veins until the entire leaves are eventually yellow.
Rusty spots appear dotted throughout the leaves which distinguishes Mg deficiency from lack of nitrogen.
The leaf edges appear necrotic and curl up.
Some leaves develop a whitish tinge.
Symptoms spread throughout the plant by chronic deficiency.

This can be quickly resolved by watering with 1 tablespoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding. That way the plants get all the nitrogen and Mg they need. The plants can be foliar feed at ½ teaspoon/quart of Epsom salts (first powdered and dissolved in some hot water). When mixing up soil, use 2 teaspoon dolomite lime per gallon of soil.
If the starting water is above 200 ppm, that is pretty hard water, that will lock out mg with all of the calcium in the water. Either add a 1/4 teaspoon per gallon of epsom salts or lime (both will effectively reduce the lockout or invest into a reverse osmosis water filter.
Mg can get locked-up by too much Ca, Cl or ammonium nitrogen. Don't overdo Mg or you'll lock up other nutrients).

 

[Kingrow1]

I'd like to take things a little futher than what malboro said.

Ok take a look at this chart

View attachment 1714955

This is a cal/mag deficiency chart and the best one available, calcium on the left and mag deficiency on the right. I see you got leaves that look like the chart so my guess is you have cal/mag problems right from the start.

Ok point to note - coco robs the plant of available cal/mag as it readily absorbs it making it unavailable to the plant. All coco growers need higher levels of cal/mag than soil growers, most coco need pre flushing with cal/mag just to bring it up to acceptable growing levels.

Now adding magnesium or epsom salts to a cal/mag problem is the wrong thing to do and will futher lock out cal and mag as you need calcium to balance the magnesium and not just some calcium but exactly 3 to 5 times the amount of calcium to magnesium or basically fail at growing.

Dont rely on epsom salts but buy some cal/mag supplement from a good hydro company and preferably one more suited to growing in coco.

The end result of this is you screwed your plant up by trying to wrongly correct a cal/mag deficiency with just mag and all the other things you have tried to get normal growth back again.

This is a bad fail and seems like the coco and cal/mag were your problems mainly. Reasses your grow and use the right products for the right growing mediums, coco is so simple to grow in but you got to realise it as well as your plants are cal/mag hungry and simple little epsom salts will increase the mag levels to toxic and lock out cal totally followed by a complete lockout of mag and the domino effect of all the rest of the nutrients locking out in turn.

Start again and refine these points, cal/mag not mag(epsom salts). Hope this helps considerably dude. Peace

 

[Kingrow1]

I also see many calcium deficiencies mis diagnosed as mites, they both seem to start out the same, little necrotic spots on larger fan leaves generally clustered around the veins. Peace

 

[samchesser]

Looks like nute burn to me....I'd flush 'em. If I'm wrong, it won't hurt them. If you add stuff and they are burnt, you'll make them worse.

 

[Kingrow1]

Looks like nute burn to me....I'd flush 'em. If I'm wrong, it won't hurt them. If you add stuff and they are burnt, you'll make them worse.

Worse than this would be dead! Peace

 

[unity]

Look nute burned to me.

 

[Marlboro47]

Look nute burned to me.

Could be nute burn, just posted some info on magnesium before he added more.

 

[samchesser]

Worse than this would be dead! Peace

Worse than that would be dead...true. Don't take this the wrong way, its just a different point of view but it seems people in general are way too quick to "add" things to remedy an issues. Its impossible to say if someone is short on nutrients or locked out for a variety of different reasons. The plant will look the same in both instances but have different solutions. Plus, if you are posting sick plant pics, you're gonna get 5 different answers so who is right? If you flush a sick plant, and then lightly fertilize, you know your ph is right, you know your nutes are not too heavy and its getting a light dose of everything it needs, assuming you ph the new water and know what your feeding it is in the correct NPK/Mg ranges. I always flush first without trying to diagnose and it solves it 99% of the time. No need to figure out the problem if you have the solution already. Anyway, this concept works for me really well and its easy. One size fits all solution. Plus, to the original poster, given that you have tried "everything", it probably means you added a bunch of stuff and made the problem worse when you should've just flushed from the beginning. Thats my 2 cents.
Here's a good link that helps make sense of the numbers on the side of your nutes, just to make sure you're feeding it correctly.......ie: making sure your MG is in range.

http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm#profilecalculator

 

[PeacefulKid1992]

it looks like over water or nute burn maybe

 

[Kingrow1]

Worse than that would be dead...true. Don't take this the wrong way, its just a different point of view but it seems people in general are way too quick to "add" things to remedy an issues. Its impossible to say if someone is short on nutrients or locked out for a variety of different reasons. The plant will look the same in both instances but have different solutions. Plus, if you are posting sick plant pics, you're gonna get 5 different answers so who is right? If you flush a sick plant, and then lightly fertilize, you know your ph is right, you know your nutes are not too heavy and its getting a light dose of everything it needs, assuming you ph the new water and know what your feeding it is in the correct NPK/Mg ranges. I always flush first without trying to diagnose and it solves it 99% of the time. No need to figure out the problem if you have the solution already. Anyway, this concept works for me really well and its easy. One size fits all solution. Plus, to the original poster, given that you have tried "everything", it probably means you added a bunch of stuff and made the problem worse when you should've just flushed from the beginning. Thats my 2 cents.
Here's a good link that helps make sense of the numbers on the side of your nutes, just to make sure you're feeding it correctly.......ie: making sure your MG is in range.

http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm#profilecalculator

Well done bro, this is clever thinking and the way i like it. I agree he has screwed things up trying to make things better, i see cal/mag but not totally sure but somehow he needs to hit on the original problem or else fail again.

Other reason i expanded on cal/mag is because he is using epsom salts, a BIG no no without the right ratio of calcium to balance the magnesium, probably gave the plant a mag overdose. Epsom salts is good for a mag deficiency but useless for a cal/mag deficiency.

I too recomend we discuss problems rather than jump in with one line quick answers. Even better than that i would rather just discuss and the grower can come to his own conclusions and gain some valuable experience. The wrong suggestion always ends in a big fat fail.

Well done for pointing this out, seeing a lot of new faces here at the mo. Peace and rep for being honest with us all.

 

[samchesser]

Well done bro, this is clever thinking and the way i like it. I agree he has screwed things up trying to make things better, i see cal/mag but not totally sure but somehow he needs to hit on the original problem or else fail again.

Other reason i expanded on cal/mag is because he is using epsom salts, a BIG no no without the right ratio of calcium to balance the magnesium, probably gave the plant a mag overdose. Epsom salts is good for a mag deficiency but useless for a cal/mag deficiency.

I too recomend we discuss problems rather than jump in with one line quick answers. Even better than that i would rather just discuss and the grower can come to his own conclusions and gain some valuable experience. The wrong suggestion always ends in a big fat fail.

Well done for pointing this out, seeing a lot of new faces here at the mo. Peace and rep for being honest with us all.

I'm new cause I learned a lot from this site over the years and thought it would be good to give back a little...new face, old grower. I think I flush first always cause I'm too stupid to figure out whats wrong but it works...lol
For the poster: if you use GH lucas formula, you can go with two bottles only and its super PH stable, fairly priced and I haven't had a single issue with it yet. Its like nutes for dummies and works great...an idea for the future anyway. Lots of info on RIU about it. I can at the very least guarantee you won't be looking at leaf pictures anymore trying to figure out whats wrong. Plus you can stick it to the hydro guys and quit buying their overpriced "super" foods too. The only thing I add is h2o2 but thats cause I'm lazy and don't like cleaning my reservoir- keeps it clean.

 

[gobskiii]

sam i just figured that out...my girl had early signs of cal/mag...and poor me dont have cash to go get some...i grow using FFOF and their entire nute line-up...i knew it could be fixed with what i had...and i knew she was def. due to overfeeding. i flushed her once for 2 days, and yesterday i fed her...tomorrow will prob. tell the whole story, but progression has stopped. thus far...although in this instance i'd say flush light feeding of cal/mag...just because she looks like utter shit...sorry she'll get better though.

 

[Kingrow1]

sam i just figured that out...my girl had early signs of cal/mag...and poor me dont have cash to go get some...i grow using FFOF and their entire nute line-up...i knew it could be fixed with what i had...and i knew she was def. due to overfeeding. i flushed her once for 2 days, and yesterday i fed her...tomorrow will prob. tell the whole story, but progression has stopped. thus far...although in this instance i'd say flush light feeding of cal/mag...just because she looks like utter shit...sorry she'll get better though.

Another satisfied grower, good luck with the cal/mag dude and sam i hear you and look forward to what you have to say in future. Peace

 

[Panch]

Thanks for the advice. I flushed, light nutes, no luck. I could tell something was wrong because they didn't drink the water as the healthy ones. I noticed the leaves were curled under and deformed as the color lightened on them. I have one girl had the color lighten, leaves deformed, and all the white hairs turned red and stopped drinking. I'm so frustrated with it, I wonder if iI should cut them and start new. I just hate waisting nutes and time on losing cause.

 

[Kingrow1]

Start more but keep these also, practice making them healthy again to ensure that it was cal/mag in the first place as a possible suggestion. Peace

 

[samchesser]

Its gonna take longer than this. the flush would stop then from getting worse and then following week or so it should recover.
I second the start more and keep these too.

If the healthy ones are the ones in the background of the pic, those didn't look very healthy either, looked burnt too.

If you start new ones, post some info on what your doing/feeding and maybe we can point out something your missing.

 

[cary schellie]

a mag def wont make ur plants look that bad, god

 

[Kingrow1]

a mag def wont make ur plants look that bad, god

Would have been nice to see what the original problem was before all the tinkering. Peace

 

[scunkworm]

Hi guys, ive had something that looks so much like what mine did' as you can see with the pics were this thing was just ripping its way through my plant and also its clone too, loads of people said this was a cal-mag def but i never try'd cal-mag on it, and i only gave it epsom salts when i should have put some hydrated lime for cal into a mix and try'd that. But i really dont think it would have made any diff' if its the same as what my problems was and it remanis un trated then kiss goodbye to your plants as it kill almost every leave on the plant, so i ended up cutting every leaf that was fucked untill i was left with 3-4 leafs on the top of the plant, loads of littler leaves grew back but with in no time it was the same as the pics, i had to kill it in the end coz it was just wasting food,light,time for a sick plant that just wasn't gonna get better. I try some cal-mag and see what happens' at the end of the day if it sorts your plant out then brill, but if it dontr then you'll already have the stuff there just incase you ever do get a cal-mag prob lol, best of luck my friend scunk