Nitrient burn or Mag deficiency

HydroLynx

Well-Known Member

• Mar 23, 2020

• #1

hey guys. My Exodus Cheese plants always complain like this. I think its a mag issue but could also be lockout. Running flooded tubes with water at 20c ie 68f
Ec = 365ppm canadian
Ph meter out of action

 

Snoopy808

Well-Known Member

• Mar 23, 2020

• #2

Maybe mag. But my eye sees more calcium deficiency.

And thats an awfully red stem...phosphorus deficiency can look like other nute issues.

 

HydroLynx

Well-Known Member

• Mar 24, 2020

• #3

Yeah the cuttings were very neglected, but the brown spots on leaves is new and generally occurs in my crops. I have very soft water and I make my own nutes, so I will jack up calcium from 40 to 50ppm and there's also 15ppm in the water so 65ppm tots.

 

Bernie420

Well-Known Member

• Mar 24, 2020

• #4

HydroLynx said:

View attachment 4511544hey guys. My Exodus Cheese plants always complain like this. I think its a mag issue but could also be lockout. Running flooded tubes with water at 20c ie 68f
Ec = 365ppm canadian
Ph meter out of action

Click to expand...

looks like K deficiency.

Fix your ph meter ...get the drops...ph swing is probably whats fucking you...that size plant should be able to handle a higher ppm ...bump it up a hundred..

Up the mag as well...looks like it could stand a bit more of mag...epsom salt not cal/mag

 

HydroLynx

Well-Known Member

• Mar 25, 2020

• #5

I just had an idea. I think my KNO3 may be contaminated with chloride, I ordered it on like takealot.com from some guy who use KCl in making it. I will go buy some pure Saltpeter (KNO3) from the pharmacy tomorow before my country goes into lockdown

 

HydroLynx

Well-Known Member

• Mar 25, 2020

• #6

I still think it's Mg-Ca issue tho. I rushed to get pH calibration solution today. Got my pH meter accurately measuring pH and it's fine at 6. Gonna make more nutes tomorrow and change the res out with fresh & stronger nutes esp with Ca and Mg