Nute burned my 3 week old WW's

serialkiller

Active Member
New pictures in post 11. Please diagnose by those pictures.

Last week I nute burned my at the time 2 week old seedlings, I tried using 1/4 nutes and a little epsom salt (I read if you have hard water this will help, my water is 350ppm, dont worry I wont do that again).

Anyway I caught my mistake within a few hours and changed my res' to just pH'd tap water, actually I used some melted snow and some tap water, ppm was 200. The plants stopped declining but the damage was done. Its been a week not and I dont notice any improvement in the canopy at all. There is a TON of new, healthy root growth but no new growth up top and some of the leaves are even getting worse. I just changed the res' today again with pH tap water (350ppm).

Are these girls going make it? Did I just stunt their growth a little or did I kill them?

Also the last pic is of a little plant that I didnt think was going to make it, had some sort of crazy problems with the leaves deformed, I just stuck it in some FF happy frog and set it off to the side and now look at it, its looking great!

Plants are femenized White Widow from Nirvana, germinated 12/1. DWC system. I maintain pH around 6.0, res temp fluxuates between 63 and 70 and the air is 85 lights on and 67 lights off. I am pulling fresh air from outside and exhausting threw my light. I use GH 3 part and use floramicro hard water. The light is a 400W MH. The medium is Hydroton with some plants in RW cubes and others in rapid rooters.
 

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smallclosetgrowr

Well-Known Member
i wouldnt feed for another 2 weeks , just let them sit in soil dont add anything but water . there stil kinda small for nutes but 1/4 shouldnt be to bad + it doesnt really look like nute burn it looks like calcium def or ph problems "but its not" only water every 3 days and it should turn around
 

stoner1984

Active Member
He's not growing in soil mate. Not so sure its nute burn either, some of your new growth looks rather twisted fella.

Whatever you did it may take a litle time to recover, dont expect it to happen over night and check the diagnosis thread for an explanation.
 

serialkiller

Active Member
Whatever you did it may take a litle time to recover, dont expect it to happen over night and check the diagnosis thread for an explanation.
Thanks man, It may not be nute burn, what happened is I gave it a huge dose of Mg (the epsom salt) with 1/4 strength nutes, they already had 1/4 nutes and were doing well, so just that alone didnt do it, its the add Mag. It was 10x the recommended dose on accident. None of that is new growth though, the leaves havent grown at all since then, only the roots have grown.

Is it possible that this is Calcium deficiency? From the excess Mg locking out Ca? I'm scared to use anything but plain water now till they're better.
 

sampson0420

Well-Known Member
yeah, I would say that you didn't nute burn, but rather have some nute lockout. If you have very high levels of one nutrient, it can than lock out others. I would go back on 1/4 to 1/2 dose nutes, if you see the tips burn, then back off.
 

serialkiller

Active Member
Okay, I just gave them 1/8 nutes via foliar feeding. I'll see if that makes a difference and plan on changing back to nutes later today/tomorrow.
 

Relaxed

Well-Known Member
get ya every time. how many times have you read NO NUTS FOR 3 WEEKS. Always trying to push the limit....back to basics is best.
 

svchop889

Well-Known Member
why are you using epsom salt during veg? I think it's better used during flower...
what are you talking about please elaborate because im pretty sure its used any time you have a magnesium deficiency but you should only use 1tsp per gallon of water
 

serialkiller

Active Member
The cannabis bible says 1/4 tsp per gallon. I tried to calculate the amount to concentrate and dissolve into water first and then add a little of the epsom salt water to my res and thats how I overdosed it.

So is the general consensus Calcium lockout caused from overdosing Mg?
 

snutter

Well-Known Member
what are you talking about please elaborate because im pretty sure its used any time you have a magnesium deficiency but you should only use 1tsp per gallon of water
Yes, that's true it can be used during a deficiency state... But, if you're using the correct nutes at the correct strengths during veg, you shouldn't have a magnesium deficiency...

During flowering is a different story since more of it is being used by the plant. That's why I said what I said earlier...

My general suggestion to people is use superthrive as a nutrient additive during veg and epsom salt (magnesium sulfate) as a nutrient additive during flower and you should see excellent results. As long as you don't overdose your girls, of course...and as long as you are using correct nutes at correct strengths.. :-)
 

seen2

Member
Hey SKiller...It must be fait that i happen to run along this thread, i was a bout to post a similar problem. Looks like me and you are in the same stages of growth with same problem. i also went with nirvana WW's. Im using ROOTS Organic Soil, and have the exact same defficiancy that you are having. Only i've used straight tap water and no nutes ... i was going to wait another 2 weeks. .... also using a 90watt UFO.....

u think its the seeds? ill post some pics soon.
 
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