can someone help? phosphorus, nitrogen, or magnesium

i got 2 raskal fire og starting their fourth week of flowering and they are starting to yellow, using the full canna coco line, coco a, coco b, rhizo, cannazym, pk 13/14 and boost, added some calmag the other day and hasnt seemed to do anything

Any chance you can upload a picture that isn't orange from your light? Bring it out of the grow area, that way things will be easier to see as all the leafs just look different shades of brown under the HPS light

Given that they're starting on the lower leaves, I'd say it's nitrogen deficient but the colouring in the pictures are a little "tango'd" =]

Are the edges of lower leaves brown and crispy? Looks like nute burn since leaves are curling down.

hsfkush said:

Any chance you can upload a picture that isn't orange from your light? Bring it out of the grow area, that way things will be easier to see as all the leafs just look different shades of brown under the HPS light

Given that they're starting on the lower leaves, I'd say it's nitrogen deficient but the colouring in the pictures are a little "tango'd" =]

Click to expand...

The blanched tips on new growth indicate nitrogen overdose. And barring any new photos I am going to venture a guess that you have caused nutrient problems by overfeeding, incorrect pH and poor air movement. Looking at orange pics sideways . . ..

N lockout because the ph isn't 6.5 .

What's your PH? If it's off it does'nt matter what you add the plant can't use it.

Post better pics tonight thanks

ok heres some better pics

Yep you got Nitrogen problems, which are easy to fix.
Since your plants appear to have pretty vigorous growth, its probably lockout due to build up in the soil.
Flush a couple of gallons through each of the affected plants, then do a foliar with some mild all around nitrogen rich nutes.
That should take care of it in a week or less.
Use plain water till the plants recover then resume nutes at a diluted rate.
Also, please rotate pics when posting.
Peace!

cool right on thanks, yeah my bad idk why them came up sideways