over/under watering or something else?

im not sure whats going on. about 4 days ago one of the plants tips started to curl down. the soil was dry on top but the pot felt like it was still moist so i left it alone. it slowly started to get worse and the second one started to do the same. last night the stems of the fan leaves started to get limp and sag which i thought was an under watered sign so i gave both of them some water. this morning before the lights went off they started to look a lot better. 7 hours later they look bad again. I've been worrying about over watering and under watering and i thought things were doing good and they were growing fast. until they started acting like this. also a couple of the lower fan leaves started to turn yellowish/brown. do you think that its from over watering or under watering? I'm pretty sure I'm doing one or the other but I'm scared to let them dry out in fear that i might need more water

their 14 days into 12/12
fox farm ocean forrest soil
5 gal pots
no nutes
watering from the sink. never checked the PH until last water yesterday. watered with 5.5-6.0 PH
i have a moisture/ph meter on its way

im not sure what i should do. i thought that i had the watering down but i guess not

roll_one said:

im not sure whats going on. about 4 days ago one of the plants tips started to curl down. the soil was dry on top but the pot felt like it was still moist so i left it alone. it slowly started to get worse and the second one started to do the same. last night the stems of the fan leaves started to get limp and sag which i thought was an under watered sign so i gave both of them some water. this morning before the lights went off they started to look a lot better. 7 hours later they look bad again. I've been worrying about over watering and under watering and i thought things were doing good and they were growing fast. until they started acting like this. also a couple of the lower fan leaves started to turn yellowish/brown. do you think that its from over watering or under watering? I'm pretty sure I'm doing one or the other but I'm scared to let them dry out in fear that i might need more water

their 14 days into 12/12
fox farm ocean forrest soil
5 gal pots
no nutes
watering from the sink. never checked the PH until last water yesterday. watered with 5.5-6.0 PH
i have a moisture/ph meter on its way

im not sure what i should do. i thought that i had the watering down but i guess not

Click to expand...

How much water are you giving them and how often? What size pots?

their in 5 gal fabric pots, i was taking them to the sink and using the tap water to water them. id water them until i would see a little bit of run off on the bottom and then id stop. they were going about 3-4 days between waterings. id water again when the soil was dry finger deep and id feel the side of the pot for where the moisture was. you can feel the loose dry soil and you could feel soil that was more dense. i was thinking the dense soil was the wet soil but now I'm not so sure if I'm right.

before i was watering when the soil was dry finger deep and i was getting signs of over watering so i cut back the waterings a little. when i did that they were looking really good, healthy and growing really fast. now the growing has slowed down dramatically and its really has me worried because its been 2 weeks into 12/12

i was starting to think that it could be a PH problem because the pots didn't feel like they needed water so a couple days ago i went to the hydro store and picked up the chemicals to test the water. my tap water had high PH. i took a gal of water and lowered it to 5.5-6.0 for the last watering i did. the last time i watered i didn't wait for any run off. when i checked then about 7 hours later the left one responded well and was looking perky and almost 100% with the right no change. a few hours after this the left one started to droop again. so now i dont know if i under watered or over watered and feel like which ever i do now is the wrong choice.

there looks like theirs another deficiency or maybe related to the waterings? the bottom fan leaves started to die, i thought that it was because they were so low and not getting light. but a couple fan leaves in the middle of the plant started to turn yellowish and then turn brown and die off. it started on the edges of the fan leaves furthest from the stem and the leaf would slowly die off

the temp in the tent has been siting at 79 degrees pretty steadily
humidity has been low, sitting around 30%

Temp is slightly high and humidity a little low to. Give them a water I'd say aswell go from there and if them leafs are really bad remove them to prevent mould

Don't see an issue with 79degrees at all.
Your PH should be between 6 and 7 not 5 and 6.
I'm gona take a stab in the dark from the little bit of damage I can see on your second pic and say you could have a mag deficiency from to low ph, keep it 6.5 and keep an eye for changes. If that's what it is proper PH should solve the issue as well as many others.
It might not be Mag def though, more pictures in natural light would help. Close ups and full plant pics.
Could be other problems, hard to tell the true colour of the leaves because I'm not sure what light they are taken in.
Also if they are not in full bloom I wouldn't worry about taking damaged leaves off, they are a good indicator and taking them off while problems still exist will just mean the healthy leaves will start to display the problems instead of the damaged ones.
It would be wise if your using tap water to fill a bucket the day before you water and allow it to sit to get it to room temp and to dissipate the chlorine in your water supply. Cold water wont help the roots absorb the nutes in the soil.
Leaves look pretty dark from your pics but that could just be the light again.
Anyway bottom line is get your PH sorted and keep an eye on them and get some better pictures up.

coreywebster said:

Don't see an issue with 79degrees at all.
Your PH should be between 6 and 7 not 5 and 6.
I'm gona take a stab in the dark from the little bit of damage I can see on your second pic and say you could have a mag deficiency from to low ph, keep it 6.5 and keep an eye for changes. If that's what it is proper PH should solve the issue as well as many others.
It might not be Mag def though, more pictures in natural light would help. Close ups and full plant pics.
Could be other problems, hard to tell the true colour of the leaves because I'm not sure what light they are taken in.
Also if they are not in full bloom I wouldn't worry about taking damaged leaves off, they are a good indicator and taking them off while problems still exist will just mean the healthy leaves will start to display the problems instead of the damaged ones.
It would be wise if your using tap water to fill a bucket the day before you water and allow it to sit to get it to room temp and to dissipate the chlorine in your water supply. Cold water wont help the roots absorb the nutes in the soil.
Leaves look pretty dark from your pics but that could just be the light again.
Anyway bottom line is get your PH sorted and keep an eye on them and get some better pictures up.

Click to expand...

I was under the impression that the PH was suppose to be that but ill raise it.

The leaves are a dark green, whats that a sign of, Mag def?
If so how do i correct that, is there something i can buy?

Thats exactly what happened, i removed the damaged leaves and it showed up on new leaves. Well not new ones just different leaves.

Since i bought the PH stuff I've been keeping a gal of water with the adjusted PH inside of the tent. Is that ok or should i keep it outside the tent and should i buy spring water or distilled water instead? When ever i filled the gal jug or used the sink to water, i made sure that the water wasn't cold. Not sure if that makes a difference or not

I had a few grows a long time ago before all of this info was readily available and they went pretty good besides the low yield with space and CFLs. I really wasn't expecting these stupid mistakes on my part which is kinda frustrating but i guess its a learning experience none less.

roll_one said:

I was under the impression that the PH was suppose to be that but ill raise it.

The leaves are a dark green, whats that a sign of, Mag def?
If so how do i correct that, is there something i can buy?

Thats exactly what happened, i removed the damaged leaves and it showed up on new leaves. Well not new ones just different leaves.

Since i bought the PH stuff I've been keeping a gal of water with the adjusted PH inside of the tent. Is that ok or should i keep it outside the tent and should i buy spring water or distilled water instead? When ever i filled the gal jug or used the sink to water, i made sure that the water wasn't cold. Not sure if that makes a difference or not

I had a few grows a long time ago before all of this info was readily available and they went pretty good besides the low yield with space and CFLs. I really wasn't expecting these stupid mistakes on my part which is kinda frustrating but i guess its a learning experience none less.

Click to expand...

Very dark green leaves with leaf tips clawing is a sign of Nitrogen toxicity, but it don't see clawing from the pics, however could be early signs. Some strains just have darker leaves though.
Mag deficiency starts with yellowing between the veins of the leaf. Eventually the leaf edge can look burnt which is why I mentioned it based on your second picture.
Heres a link, I'm only guessing from what little I can see and a bit of info you gave.

http://www.growweedeasy.com/magnesium-deficiency-cannabis

The link above will provide a few ways to solve Mag def but the most important thing is to make sure your PH is correct, adding more Magnesium when the PH is so low will not solve it if the plant cant absorb it.

N toxicity http://www.growweedeasy.com/nitrogen-toxicity-cannabis

Just have a look at both and check out the plant diagnosis part of the site I linked. Its pretty useful and it doesn't hurt to try and rule these things out.

Not sure about keeping water in the tent, I would of thought it wasn't a great idea, I keep mine next to my tent so its room temperature, not warmer or colder. My water is chlorinated but not too heavily, you could check out your water online and find out what is in it. If it heavily chlorinated then you should defo let it stand for 24-48hours.

Its hard for anyone to diagnose properly even from lots of pictures so your best taking a good look and using various sites to diagnose it yourself since you have the best view. These days all the info needed can be found online pretty quickly.
Also check out fox farms website, they have lots of info on their soils and how to get the best out of it.

Good luck with them. Hope you can sort out your issues.