Help, need diagnosis via pictures attached.

[Condrayack]

I am currently in the fourth week of flowering a mystery Sativa & Indica. However some of the tops on the sativa have begun to go limp almost like it's deprived of water or something. The only nutes I'm using are the General Hydroponics three part series micro,grow, bloom.. Feed every three days and flush a once a week. Temp and humidity is in the pic. Please let me know what I need to adjust.

[Condrayack]

PH is 6.0-6.5

[Bloomin Idiot]

PH is 6.0-6.5

Soil or the water ph? I think I see a pot of soil back there 3 gallons?

I would say water with 450ml daily and no needed to flush- you can prolly up the rate from the label. soil watering would like a ph of 6-6.3. also are you adding cal mag to your 3 part? I cant tell but leaves kinda look like the need it. hard to say in the hps lights.

[Condrayack]

The PH is 6 when it goes in and comes out at about 6.5-6.8. I have not used calmag, what is happening internally for me to need the calmag? The pots are 5 gallons.

[Bloomin Idiot]

The PH is 6 when it goes in and comes out at about 6.5-6.8. I have not used calmag, what is happening internally for me to need the calmag? The pots are 5 gallons.

You use cal/mag every watering and feeding.

Cal/mag is basic nutrients that come in natural water.

Now the real question is what kind of water are you using?

you would only need cal/mag if you are using R/O water since the nutrients are filtered clean from R/O water.

If you are using something like tap water then your city has already added those basic nutrients in the drinking water.

So if that's the case don't use cal/mag unless you have a cal/mag deficiency

it is always best to use R/O water and add cal/mag yourself so you can have fresh clean water and control your ppms.

also the leave edges look curled? They are hot if so...

[GaGrown]

Instead of cal-mag... Use unsulfered mollassas ... One tablespoon per gallon. Every other waterin'.

[Condrayack]

I am using well water that is filtered for drinking etc... I'm not sure why the leaves are curling the temp in there is always 70-80 never any higher and humidity 40%-50%. Also I have heard if you keep the humidity lower at around 35%-40% in later stages of flowering that the plant will resonate more in an attempt to protect itself?

[LetsSeeYa]

Stop flushing out all your nutes bro, i think its getting to much water but is not the big issue. Do ya have perlite in your soil you may have a bunch of water an soil mixed down in there so its like a mucky mess so the roots d not have air. Can you pull them out and look at the roots, do this after they are dry so the root ball doesnt fall apart from the soil. If its like all wet and mucky i would re pot with perlite added.

Good luck man,

LSY