Blaiseplays
Well-Known Member
Its not light
Just flushed her in case it's nutrients these are what my other light burns look like that's why I don't think it's light either
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Its not light
Only really on the new ones I haven't seen anything like this on my older plant though and it's pretty much touching the lights
It looks like magnesium BUT I read that an Iron or Zinc deficiency will look like a mag deficiency while only affecting the newer/upper leaves.
there's the food I use it has quite a bit of magnesium and zinc
Are you growing tomatoes?
I'd look into a nutrient system.
Are you feeding calmag? Whats your ph going in?
Well I heard tomatoes are the closest thing to cannabis plants and the only nutrients I know of for cannabis plants is remo and that shit ain't really in my budget for two plants I am just growing for myself for now .
So could ph also be the problem why my big plant is 30 days in flow and its main buds aren't even size of my fingure
Look at general hydroponics, its a little less expensive than most nutrients that work. go online and google Lucas Formula.
First we need to know what your ph is starting at
Do you know how many Mila grams of baking soda is have to put in 1 letters to get a ph of 6.5-6.8?
Problems with Magnesium being locked out by pH troubles
Light Acid Soils, soils with excessive potassium, calcium and or phosphorus
Soil
Magnesium gets locked out of soil growing at pH levels of 2.0-6.4
Magnesium is absorbed best in soil at a pH level of 6.5-9.1 . (Wouldn't recommend having a pH of over 7.0 in soil) anything out of the ranges listed will contribute to a Magnesium deficiency.
Hydro and Soil less Mediums
Magnesium gets locked out of Hydro and Soil less Mediums at pH levels of 2.0-5.7
Magnesium is absorbed best in Hydro and Soil less Mediums at pH levels of 5.8-9.1
(Wouldn't recommend having a pH over 6.5 in hydro and soil less mediums.) Best range for hydro and soil less mediums is 5.0 to 6.0. Anything out of the ranges listed will contribute to a Magnesium deficiency.
Solution to fixing a Magnesium deficiency
Any Chemical/Organic nutrients that have Magnesium in them will fix a Magnesium deficiency. (Only mixing at ½ strength when using chemical nutrients or it will cause nutrient burn!)
Other nutrients that have magnesium in them are: Epsom salts, which is fast absorption. Dolomite lime and or garden lime (same thing just called different) which is slow absorption. Sulfate of Potash, Magnesia which is medium absorption. Worm Castings, which is slow absorption. Crabshell which is slow absorption. Earth Juice Microblast, which is fast acting. (a must buy!! Has lots of 2ndary nutrients).
Now if you added to much chemical nutrients and or organics,( which is hard to burn your plants when using organics) You need to Flush the soil with plain water. You need to use 2 times as much water as the size of the pot, for example: If you have a 5 gallon pot and need to flush it, you need to use 10 gallons of water to rinse out the soil good enough to get rid of excessive nutrients.
Picture one shows a mid grade magnesium deficiency.