Help! yellowing on veins

[happily]

Much appreciated guys. I've done a bunch of reading but any recommendations on how much vinegar or lemon juice per gallon to go from 7.0 to 6.5, or what does everyone else ph down with.
I have to run some lights at night to keep the temp from dropping to far and I run the led because it's less power should I go less than 24/0 on the led's

 

[swampman]

I personally like 18/6 ...but u can also run 20/4 ..
I am not as experienced but I can tell ya most will say give the ladies some sleep ...id also try to find the proper temp of around 74-80 and if it's too cold maybe u can put a small heater around the area..
For instance ...i just made a smaller closet for smaller flgrowing as I'm working on breeding ...so outside the closet at lights off I have a small heater I crack the door and let the heat blow in because at night no lights is 50-60 and alot colder if it's 20 or below outsides ....
I wouldn't suggest u use MG again ...try something lime ROOTS or other soils ...MG HASNT ever given me good results ....

N the vinegar ....i use it to adjust 7.0- 6.5 I swear its a tiny drop or 2 not much at all ...shake it up and let it sit tho for around 4 hours so it balances properly ....

I also aerate my water for 36 hours ..so that sometimes fluctuates the ph
All it takes is practice and keep trying

 

[happily]

awesome guys thanks. I've been reading here awhile and working towards FD's recipe for the next batch. MG rolled just fine with weak light system but only produced about 7g's a piece. Trying to help out an aunt with a med card and the new light system seems to make those baby girls hungry for nutes.

I'm not sure how to like a post or I would.(prob. haven't been here long enough)

 

[GoAuto6]

look at the bottom right corner of the post you want to like, just above reply with quote's, and in green you'll see like..

 

[kamikaza]

Hi happily.

from looking at your pic's, pic number 1 and 3 look like tipycal sulfur deficiency.

the solution - epsom salt.

pic 2 could be iron def, but i have no expariance with that.

i don't know the nuts you are using. did you switch to flower nutes already?

sometimes if you try to make them veg longer, they will show deficiency in the elements they need to flower.

 

[happily]

Hi happily.

from looking at your pic's, pic number 1 and 3 look like tipycal sulfur deficiency.

the solution - epsom salt.

pic 2 could be iron def, but i have no expariance with that.

i don't know the nuts you are using. did you switch to flower nutes already?

sometimes if you try to make them veg longer, they will show deficiency in the elements they need to flower.

I tend to agree with the sulfur and possible iron. It had been a while since they had some epsom and very light on nutes altogether. I fed them 2 days ago and they're hanging in. I'm gonna get a better ph tester to make sure the iron isn't locked out. Much thanks

 

[happily]

all of them yellow through the veg stage and then green right up. very green. I've been messing with ph and lights for awhile and convinced it's sulfur and increased need for nutes with new lights in veg stage if anyone else experiences this. Thanks for all the help

 

[riz la green]

Lift them off the floor mate, if your low is 65 and the floor is cold, lockout can start at below 65. Heat mats can help but sometimes just lifting them up with an upturned saucer or sitting them in a couple of other empty pots can help keep them from losing all their daytime heat through the floor.

 

[Muddy]

Lets not mislead this grower by giving him bad information. In order for temps to be causing lockout the temps would need to drop into the 50s and stay there. At that point the uptake of P is inhibited and the first symptoms are red or purple leaf stems. That's not the case here.

Lift them off the floor mate, if your low is 65 and the floor is cold, lockout can start at below 65. Heat mats can help but sometimes just lifting them up with an upturned saucer or sitting them in a couple of other empty pots can help keep them from losing all their daytime heat through the floor.

 

[Muddy]

I suspect your problems all stem from using Miracle Grow soil and nutrients as neither is made for growing MJ. The soil contain slow release nutrients which can create problems for autos. It is often too strong, and since it's slow release, last too long. I would strongly suggest getting some better soil and nutes for your next grow.

Regarding the yellowing, from your pictures it looks like it was only on the top leaves. Usually when the yellowing is only on the top leaves, and it starts from the center of the leaf and works outward, it's light bleaching. Did it start after you added the LED? If so, how close to the plant tops do you have it?

all of them yellow through the veg stage and then green right up. very green. I've been messing with ph and lights for awhile and convinced it's sulfur and increased need for nutes with new lights in veg stage if anyone else experiences this. Thanks for all the help