Cal/Mag deficiency?

[disco pilgrim]

First grow and not too sure about things so here are a few questions.

1) I have 4 plants in a scrog all doing well except one. I'm thinking it may be a cal/ mag issue but not sure. The newer growth has been yellow in the middle of the leaves and green around the edges. The runoff ph has been low (5.5)though so it may be that. Is this a ph problem or something else?

2) I have put the plants under the screen and made the switch to 12/12 lights two weeks ago. The tallest branch is about 8" above the screen. Should I continue to train or let them go?

3) I have the 4 plants in a 3.5' x 3.5' screen under a 600w hps. I was thinking of adding a smaller led for supplementation, maybe a Diamond Series 100 w. Would the extra light add to yield or potency? Would it be worth it or is the 600w plenty.



Thanks in advance for any help!

 

[chuck estevez]

it's not cal/mag. what nutes are you using and what medium?

 

[disco pilgrim]

I am using Roots Organic soil with their line of nutes, Buddha grow and Buddha bloom.

 

[bleuballz]

Did you buy their elemental?
Give em some if you did.

 

[disco pilgrim]

So the elemental is a cal/ mag supplement from Aurora Inno, I will try that.

Anyone have any thoughts about my other 2 questions? Would an extra 100w of led help or is that too little? Also, should I keep tying down under the screen or let them go since it am 2 weeks into flowering?

Thanks

 

[Mhogs]

Extra 100w led... well it couldn't hurt. But I don't think it's going to make much difference in yield or potency.

 

[bleuballz]

I just assumed you had it already.

As for the led's. Go for it if you want. Can't hurt.

 

[Da Mann]

I don't know where your at on your nutes but up them and you should be fine and don't let them get to dry.

 

[rob333]

First grow and not too sure about things so here are a few questions.

1) I have 4 plants in a scrog all doing well except one. I'm thinking it may be a cal/ mag issue but not sure. The newer growth has been yellow in the middle of the leaves and green around the edges. The runoff ph has been low (5.5)though so it may be that. Is this a ph problem or something else?View attachment 3213975

2) I have put the plants under the screen and made the switch to 12/12 lights two weeks ago. The tallest branch is about 8" above the screen. Should I continue to train or let them go?

3) I have the 4 plants in a 3.5' x 3.5' screen under a 600w hps. I was thinking of adding a smaller led for supplementation, maybe a Diamond Series 100 w. Would the extra light add to yield or potency? Would it be worth it or is the 600w plenty.
View attachment 3213973


Thanks in advance for any help!

what week are u in ?

 

[disco pilgrim]

I just finished the second week of flower and have only fed once with bloom nutes at 3/4 strength.

 

[disco pilgrim]

So I'm at near the end of the third week of flower now. She is flowering as much as the others but still has the weird yellowing in the middle of the newer leaves which doesn't seem to be any of the symptoms in the chart. I just fed with full strength nutes the day before this pic was taken. Should I not worry about it? Any other ideas?

 

[purplehays1]

mine are doing the exact same thing, about 1-2 weeks behind yours. I think it is just the hps light is intense, did u switch them from CFL's? I switched from t5 to 400w hps and they had the same yellowing effect since, but they are growing well so i think it might just be the new lights and nothing to worry about.

 

[Da Mann]

Sound like you need moor phosphorous.

 

[swagslayer420]

So the elemental is a cal/ mag supplement from Aurora Inno, I will try that.

Anyone have any thoughts about my other 2 questions? Would an extra 100w of led help or is that too little? Also, should I keep tying down under the screen or let them go since it am 2 weeks into flowering?

Thanks

The led will help with oil production and give you more light which never hurts.

 

[miccyj]

They are hungry, are you alternating feedings?