Mg defficiency?

botanist95

botanist95

Well-Known Member
I'm pretty sure this is Mg def but not totally sure was thinking some cal-mag would do so good any other opinions?

almost 33 days in veg
600 watt cool tube mh bulb
growing in FFOF
temps right at 75
rh 60 to 65%

IMAG1009.jpgIMAG1011.jpgIMAG1012.jpgIMAG1013.jpg



can any one also tell me why my new tops are leaning over towards a horizontal position? I was thinking light maybe to far away but not all of my plants are doing it just the 2 sour diesels. Maybe its the crappy cool tubes light distribution?

IMAG1014.jpg
 
they look fine to me the spot is prob a drip or something. plants will lean towards the light. for cooltube use a mogul to mogul socket extension3874_4f1c9b4cf194a8dd6cd164475b3b5d47efa628ee_original_x_323.jpg
 
it doesn't look like mg to me. maybe just a start of cal in the first photo, but idk. the time i used ffof the ph was way low. a little dolomite lime would have cal/mag and stabalize the ph. If it's not the issue, it wont hurt them. ffof also tends to be really hot, so i'd be careful about any ferts for a bit, they are pretty dark green. are you letting the soil dry between watering?
 
ok that's the only obvious things that came to mind... oh, have you been spraying during lights on at all? because that can cause all sorts of weird little burns.
 
Plus if it persists on this unknown issue didnt want it to be a major issue in flower you know what i mean?
 
ok, my guess would be cal then, but you should wait for someone that's a little more knowledgeable. I'm not sure about that. other thing is that if the pots are really big for the plants or bad drainage and is staying kinda on the wet side for a long time, it could cause root issues. that can show up as a lot of little defs + sagging. can be hard to figure out sometimes.
 
well thanx for the help, drainage is very well but like to get this copper looking spotting under control so if there is any other opinions would like to hear some .
 
Looks like the start of a K def. to me.
You need to tell us things for us to tell you things.
 

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I thought i gave as much info as i could exactly what didnt i say? The only other thing i could think of is my water is ph'd at 6.5? soil run-off is 6.3?
 
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