is this normal or not

callies

Active Member
hi people doing dwc grow
so my plant has been in flower for 1 week now and i have noticed some of the lower leafs are turning yellow and dropping off. i also noticed when they are ready to fall off the stems are hollow. im wondering if this is because the plant is using so much nitrogen and because i haven't been feeding cal mag . i feed my plants on the low end around 600 ppm and for the 1st week of transition to 12/12 i used grow nutrients

i feel like my plant isnt eating allot as its only using about 10 ppm per day and has started using its stored up nutrients. how many ppms does other peoples plants use each day

i dont think my plant looks un happy in any way.
i find the yellowing of them leaves odd. its not like a normal yellowing of the leaf more like the color is being washed out
 

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JohnDee

Well-Known Member
with DWC I'd be thinking root issues...are they white and clean or slimy brown...
JD
 
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callies

Active Member
with DWC I'd be thing root issues...are they white and clean or slimy brown...
JD
had to edit for got to past pics of the plant and yes all white and happy well from what i can see by looking in the tub plus no smells
 

callies

Active Member
the leafs that turn yellow are always the ones under my net so im also wandering if this is because they are not receiving any light meaning no chloroform production
 

JohnDee

Well-Known Member
had to edit for got to past pics of the plant and yes all white and happy well from what i can see by looking in the tub plus no smells
Well that's half the battle. And don't worry about hollow stems...some plants have them and some don't.

You need to look at your numbers. Calibrate your ph pen to make sure readings are solid.

And look at your room environment to make sure that's up to snuff.

You said your ppm only dropped a bit but how much water are they drinking per day?
JD
 

callies

Active Member
Well that's half the battle. And don't worry about hollow stems...some plants have them and some don't.

You need to look at your numbers. Calibrate your ph pen to make sure readings are solid.

And look at your room environment to make sure that's up to snuff.

You said your ppm only dropped a bit but how much water are they drinking per day?
JD
3 ish liters of water depending on how hot it is. recently its been cold so drinking a little less

hollow stems is something i have not seen before but i thought that would be strain related. i have not grow this strain so im not 100% sure how its meant to grow

i calibrate every months and adjust ph daily
i was recently watching a video about dwc and the person was saying not to adjust your ph daily and only adjust it once when changing your weekly rez he had monster buds on the plant . ive been told you should adjust ph every day. what do you people think about only adjusting ph once a week

room environment is mostly on point apart from me allowing allot of light leaks but that is intentional to test the strain for hermaphroditic tenancy
 

JohnDee

Well-Known Member
Callies,
I have some info for you but probably no answers. So when you read your EC and it has changed little...that's a good thing. That means that your plant is using water and nutes at about the same level. That's what you want. Means the EC is set properly for your situation. EC gives you nute concentration, not a measurement of total butes in res.

Far as ph...bes yo let it drift. No need to check and correct daily. A little upward climb as butes are used up is a good thing also. Exposes root zone to varying absorption for the various elements. P for example absorbs best at a much higher ph then N.

I'm gonna crash for the night. Think about what I wrote and make sure you understand. It's fairly important stuff. I'll get back to you in the morning.
JD
 

callies

Active Member
Callies,
I have some info for you but probably no answers. So when you read your EC and it has changed little...that's a good thing. That means that your plant is using water and nutes at about the same level. That's what you want. Means the EC is set properly for your situation. EC gives you nute concentration, not a measurement of total butes in res.

Far as ph...bes yo let it drift. No need to check and correct daily. A little upward climb as butes are used up is a good thing also. Exposes root zone to varying absorption for the various elements. P for example absorbs best at a much higher ph then N.

I'm gonna crash for the night. Think about what I wrote and make sure you understand. It's fairly important stuff. I'll get back to you in the morning.
JD
my 1st two grows i would allow for ph drift only upwards never down. down = root problems
i dont ph my top up nutrients or water. i always add it to the rez then re adjust the ph of the entire rez and i top up daily so guess ill try not do that so much and only adjust if its going past 6.8. i start my rez ph @ 6 and have been keeping it around 6.3 though the week
 

JohnDee

Well-Known Member
i start my rez ph @ 6 and have been keeping it around 6.3 though the week
mornin' Callies,
Your ph levels need to drop a bit. Maybe 5.7 drifting up to low 6s 6.2 or so. This is for flowering.

You know stretch lasts a couple of weeks. Next time run grow nutes for those full 2 weeks.

i haven't been feeding cal mag
Why not? Maybe some Epsom salts or calmag should be added depending on Ca in water and nutrients.
JD
 

callies

Active Member
mornin' Callies,
Your ph levels need to drop a bit. Maybe 5.7 drifting up to low 6s 6.2 or so. This is for flowering.

You know stretch lasts a couple of weeks. Next time run grow nutes for those full 2 weeks.



Why not? Maybe some Epsom salts or calmag should be added depending on Ca in water and nutrients.
JD
well i run tapwater so i cut out the cal mag so i can add more base nutes and i normily only use it if i see a need as in redness in stems and brown spots on leaves. i might start adding back 100ppm worth of cal mag and drop my base again next rez change

i have considered trying to leave veg nutes in for the 1st two weeks of flower but this plant showed sex in the 1st 5 days of 12/12 so i changed to flower nutes. i normily only leave veg nutes in for one week anyway and this strain does not stretch allot apparently. in 8 days i have not seen much

i cant bring my self to run my ph @ any lower then 6 regardless of the amount of times i read about people doing so idk its a psychological problem haha i see better growth and leaf color running above 6 in veg so i stick with that in flower. ill grow some balls( lets hope she doesn't) and try starting @ 5.7 and leaving it to drift up again
 

JohnDee

Well-Known Member
Cal,
Maybe if your tap provides enough Ca...you could try some Epsom salts for Mg. The flowering plants like the sulfur too. Helps with terpines...

If you do get brave enough to lower your ph...I think your plants will thank you for it.
Good luck and cheers,
JD
 
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