Please help!

S

Strawberrygrowin

Member
54 days from seed in 3gal fabric pots filled with coast of main and harvest hero I have been watering with RO water it comes out a PH of 7 and at the start I just did straight 7 but that darkening had me weirded out but I also started getting lime green almost yellow new growth so I thought maybe it was a CAL MAG issue so I tried a SUPER small amount and it seemed to “work” but then I started to get clawing on my plants and it could be from the nitrogen base in the cal mag itself but I’m not 100% I cannot find a single picture of any leaf deficiency that looks exactly like this one I’m at my Witt’s end and just do not know what direction to go please help ❤️
 

Attachments

  • 0D7856CB-BB0A-499C-93DC-57C490858CBD.jpeg
    0D7856CB-BB0A-499C-93DC-57C490858CBD.jpeg
    3.5 MB · Views: 37
  • B5DE9E88-CAC8-44AB-B2D5-88967E4C739F.jpeg
    B5DE9E88-CAC8-44AB-B2D5-88967E4C739F.jpeg
    1.8 MB · Views: 36
  • 1195D2DE-4199-417D-B6FA-94ADFE284910.jpeg
    1195D2DE-4199-417D-B6FA-94ADFE284910.jpeg
    1.4 MB · Views: 35
  • CAD9817D-56FC-4BAC-A5A1-330FA0F6CCB8.jpeg
    CAD9817D-56FC-4BAC-A5A1-330FA0F6CCB8.jpeg
    1.6 MB · Views: 32
  • A7214F1D-8BE1-46E5-AA3E-1426E5F2C7BD.jpeg
    A7214F1D-8BE1-46E5-AA3E-1426E5F2C7BD.jpeg
    1.6 MB · Views: 35
  • 2B14C606-089B-4A1C-8C7D-2FE90B5A2354.jpeg
    2B14C606-089B-4A1C-8C7D-2FE90B5A2354.jpeg
    1.5 MB · Views: 31
Here is my 2 shekels on this ….

You have typical inter vein symptoms associated with magnesium deficiency ….. a mobile nutrient that can be easily corrected .
Your RO water is filtered and can strip certain good minerals along with bad stuff. Coast of Maine is as with other peat mixes supplemented
with buffers - so you can run TAP water. Municipal city water will be fine for use in most grows.

As far as correcting , forget CALMAG use Mag Sulfate ( Epsom ) either in Foliar Spray or spooned on top soil and watered in.
Foliar application is the fastest absorption method … 2 tablespoons per gallon / add mix to spray bottle and use.
Or Top Dress about a tablespoon then watered in.

You are probably falling just out of range of ph uptake for that element.
 
I would like to thank everyone who chimed in to try and help, my girls look healthy as ever a nice lush emerald green did 2 low dose foliar sprays with mag sulfate and a lite top dress the results and turn around have been amazing now I can confidently do my flower transition and sleep easier knowing they are not as stressed!
 
Budzbuddha said:
Here is my 2 shekels on this ….

You have typical inter vein symptoms associated with magnesium deficiency ….. a mobile nutrient that can be easily corrected .
Your RO water is filtered and can strip certain good minerals along with bad stuff. Coast of Maine is as with other peat mixes supplemented
with buffers - so you can run TAP water. Municipal city water will be fine for use in most grows.

As far as correcting , forget CALMAG use Mag Sulfate ( Epsom ) either in Foliar Spray or spooned on top soil and watered in.
Foliar application is the fastest absorption method … 2 tablespoons per gallon / add mix to spray bottle and use.
Or Top Dress about a tablespoon then watered in.

You are probably falling just out of range of ph uptake for that element.
Click to expand...
How often should I use the epsom?
 
Early Stage Magnesium Deficiency.

Add even less calmag than you did last time and measure it so you know how much to add to your RO water for your growing situation.

If it's not measured it's not managed.

Different Genetics as well as environments will require different amounts of things like Magnesium in the plants. Calcium & magnesium go hand and hand is why it comes in a supplement and usually those supplements include Iron and other minerals so the water isn't stripping the rootzone of minerals. Remember water is a great solvent, it likes to absorb anything it comes in contact with including calcium & magnesium.

If you're growing in Coco Calcium & magnesium bond to the coco until its fully charged, literally then after that unless it breaks down you actually don't always need to keep using the calmag supplement.
 
Just a tip for yah !

If you want to lower and raise ph.. use vinegar or baking soda ..in your case you would want vinegar to go down from 7.0 to maybe a little more of 6.5-6.8range

it dosent take a lot to get you up or down just mess around and you’ll see what it takes to get where you wanna be
 
I use CYCO Platinum nutrient line with RO water and haven't had to use a PH pen in years in coco.. 1.8 EC VEG 2.0 EC Flower

Always ends up in that sweet spot of 5.7-5.9
 
Can anyone chime in on why the leaves turn a dark shade of green almost from the outside of the leaf??? They are drooping a bit and looking sad could I have added to much magnesium?
 
You must log in or register to reply here.

Similar threads

T
Help identifying plant issues
Replies
13
Views
1K
cage
C
IBD505
Help a old guy out
Replies
2
Views
436
Mr. Roy O
Mr. Roy O
S
Any have an idea what my issue is?
Replies
6
Views
461
Stay up
S
M
Need some help with identifying plant issue/leaves...
Replies
4
Views
561
pegboy
pegboy
FlyHigh589
Looking to pay someone for help dialing in a friends grow
Replies
6
Views
943
Sticky Bandit
S
Back
Top