Calcium/Mg deffincy?? NEED help!! plant looks bad!!PICS......

I have a white widow from seed 4 weeks old. In a 5 gallon DWC bucket
300watt cfl
using fox farm nute tri GROW BIG, BIG BLOSSOM AND TIGER BLOOM
i have the ppm at 800 , but the fox farm nute schedule asks for 1300ppm
i am using both grow big and big blossom
My ph is between 5.0-6.0 using ph strips until i get my ph meter
Temp is 76 degrees with 42 % humidity
I have one fan from the ceiling blowing downward and out of the closet and a fan bringing fresh air in
using r/o and distiller water

MY PROBLEM:
It started out being deformed leaves growing undefined but green and now

I am on my 4th week and what looks like nute burn is all over older leaves working it way up to newer leaves. I have researched everything i could look at narrowing it down to maybe a calcium or mg deff.?????given the look of it and i used r/o and distilled water which i hear i may need cal mag plus... any advice would help so much and steps i should take to correct this

cool man..i really appreciate the advice ..im actually using the drops but the color sheet onle goes to 6.0 so its hard for me to tell ..im hoping the ph meter comes in asap.. right now i have 2 airstones in the bucket im gonna add a third. Ive heard alot about never going over 700ppm and im just wondering why the nute scedule from Fox farm has high ppm ??



should i just ignore there ppms? and keep it under 700ppm?? thanks again i think your right about the ph =(
and if it is a ph problem will it recover ?

looks to be a cal or mg def.
Use a little cal mag in your bubbler and you should be fine!

Hey man. your plant seems to have what mine does. after looking for awhile i also believe that it is mag. trust me its not oxygen in the res. i checked that. mines also dwc. my ph is 6.3. mine started the same as you described also. the epson salts are the solution so far that seems to be what i'm going to try today. i'll let you know. Trust me man it'll get worse if you don't get it now. mine did a bit

ohh definitely bro its getting worse as im trying to solve the problem im gonna pick up some cal-mag today and try that..crossing finger. let me know how your goes...thanks for the advice

1982grower said:

Hey man. your plant seems to have what mine does. after looking for awhile i also believe that it is mag. trust me its not oxygen in the res. i checked that. mines also dwc. my ph is 6.3. mine started the same as you described also. the epson salts are the solution so far that seems to be what i'm going to try today. i'll let you know. Trust me man it'll get worse if you don't get it now. mine did a bit

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Your PH is too high for hydro.


Also uhmmm post starter(I cant remeber your name). Whats your PPMs at now? I know you bumped them up the other night to 850. Since your using distilled water yes there is a possibility of a cal def. But if your PPMs are still at 850 your problems are going to get a shitload worse before they get any better. If you get your PH under control I really think your problems will go down with this grow. Hydro isnt like soil. Your flexibility for mistakes is cut down on hydro. PH can kill in a pretty short amount of time.

No its not. ph of 6.3 in hydro is perfectly acceptable and does not adversly affect plants that i grow. This ought to help you out. I totally changed and cleaned my res last night and today my plants hve grown over an inch on their roots and the rust is clearing up. Also when i changed the res i added nute at full suggested strength. I was a little scared but today i'm glad i did. The hydro store said that many things can cause this. maybe some microscopic algea used up the mag. not sure but totally change and clean and my prob is solved. Also it does not seem to have harmed the plants, just wasted the days with slow growth. They are now cruising again. The lr2 love the 6.3ph. they are the biggest for their age i and many others have seen

Aye I was gonna say flush that bad boy and clean it

my ppm is at 400 right now i just got some cal-mag plus..and im still waiting for that ph meter ahhhh...hahaha im pretty sure your right about the ph just sucks i cant do anything till it arrives.. thanks agian for the info

that actually helps alot i was real worried about the ph. but i know for sure its 6.0 im hoping for lower but cant really tell. So im glad to see your baby's doing great at 6.3. i cleaned my res and refilled it about 1/2 of the rec. strengh. afraid of over doing it since im adding some cal-mag today. My ppm is around 600 im hoping the cal-mag helps out alot to save her and by monday i should have the ph meter to double check everything. Also i think im gonna start foliar feeding her with dutch master my local hydro store said it will prevent anymore deffincy with the plant and fix her on the spot instead of having to wait it out.. any experince with foliar feeding???

Hey I just looked at your pics and it looks like the brown is on the older leaves mainly. If thats right the prob not a cal/mg def. Normally those show up on new leaves

Definately a mg deficiency... easy fix. Go get some Epsom Salts, like 3 bucks maybe, (Bath salt, not purfumed) from the pharmacy and put a couple teaspoons in your res at about 10ml/10gal or so. You don't need much at all. It should help out. But make sure your PH is good after you add it as it may change slightly. Then work on your nutrient regimen immediately after because clearly you need to work on that to avoid this issue again.

Really you should know the 3 W's before you start experiments. Know the 3 w's and just give them what they need and you will save a lot of $$ frustration with this crap and more importantly time. Know WHAT your giving them, WHEN to give it to them and know WHY your doing it. Any indoor garden shop can stear you in the right direction. Don't be afraid to be the newbie, we were all there once too. Happy Growing.

Good luck.

The prob seems to be fixed from flushing and cleaning the res. Def ph meters are handy. sometimes i hear that mag def is on mostly older leaves and not new growth but sometimes i read the opposite. its hard to diagnose spots on leaves. anytime your plant is dying is basically gets leaf problems. if only they could speak. Also going to try epson salt spray. heard its pretty safe. have your plants gotten any worse like mine slowly did?

yah it started at the older leaves and is making its way toward the newer leaves.