Is this from overwatering?

Dgirl666

Dgirl666

Active Member
They seem to be growing ok but have some yellowing going on , is it from overwatering? I have them in a closet with the temp of 73-75 with a fan running. The pump kicks on every 15 mins of each hour. The light is about 12 inches from to tops of the plants. Oh and we are using fox farm hydro for nutes. its been about 8 days since we started the nutes and water.
:idea: Any ideas would be heplful.
heres some pics.

See how some are yellow and some look good. why?
 

Attachments

R

rdecosta88

New Member
ya those look a little over watered... i think the pump coming on 15 minutes every hour might be a little much especially with rockwool. rockwool holds alot of water so u might space out the watering. the yellowing could be nute lockout. I have an E&b setup, and i am using hydroton pebbles. i have my timer for my pumps set for every 6 hours. like so:

i am in flower right now but my flood & draining doesing change

light on 6am
6am flood 6:15 drain
12pm flood 12:15 drain
6pm light off
6pm flood 6:15 drain
12am flood 12:15 drain
and so on...

Does this help any?
 
Dgirl666

Dgirl666

Active Member
rdecosta88 said:
ya those look a little over watered... i think the pump coming on 15 minutes every hour might be a little much especially with rockwool. rockwool holds alot of water so u might space out the watering. the yellowing could be nute lockout. I have an E&b setup, and i am using hydroton pebbles. i have my timer for my pumps set for every 6 hours. like so:

i am in flower right now but my flood & draining doesing change

light on 6am
6am flood 6:15 drain
12pm flood 12:15 drain
6pm light off
6pm flood 6:15 drain
12am flood 12:15 drain
and so on...

Does this help any?
Click to expand...
Will that put a shock on them if they go without water for 6 hours, after having the almost constent flow for so long?
 
G

growingwild

Active Member
Dgirl666 said:
Will that put a shock on them if they go without water for 6 hours, after having the almost constent flow for so long?
Click to expand...
no it won`t put them in shock. I been using rockwool 4ever,in 4+4 cubes i water every other day,i run nutes 1 week the next week tap water.so every other week they get nutes and don`t let the ppm`s go over 800,i like to stay around 700.so to me they are gettin over watered.try the every other week thing you might like it.mine love it:weed:
 
chemicalsword

chemicalsword

Member
definitely overwatering w/ rockwool. drooping of leaves. might want to add a tsp of epson salt/ gallon to cure the yellowing. i would never suggest watering during lights off. twice a day for rockwool is plenty....
 
mjh0817

mjh0817

Well-Known Member
Ph levels? overwatering with rockwool, watering during lights off and I can't tell even if these are potted/set-up. 2x daily maybe three for watering, if you love mold just keep watering but if you wanna save em quit watering during lights off.
 
Dgirl666

Dgirl666

Active Member
mjh0817 said:
Ps love the fox farm good chioce
Click to expand...

Good advise from everyone and i appreciate it. I have been checking the ph keeping it at about 6.2 or so( not sure how to figure ppm's.) we have about 10 gallons of water in the reservoir at all time and are changing the water once weekly. I could use some help with ppm's by the way. Do you think the Epsom salt will work or should I just wait it out they seem to be turning green in just one day. They are rooted by the way I checked today and the roots are not brown they seem healthy!!!
 
Silky Shagsalot

Silky Shagsalot

Well-Known Member
Dgirl666 said:
Good advise from everyone and i appreciate it. I have been checking the ph keeping it at about 6.2 or so( not sure how to figure ppm's.) we have about 10 gallons of water in the reservoir at all time and are changing the water once weekly. I could use some help with ppm's by the way. Do you think the Epsom salt will work or should I just wait it out they seem to be turning green in just one day. They are rooted by the way I checked today and the roots are not brown they seem healthy!!!
Click to expand...
you're hydro, so a better ph for you would be 5.8. the yellowing is prob because you're feed is too light. that's why you need a meter to set it. forget epsom salt, that's for a mag def. i suggest a bigger rez and a ppm meter. once they get bigger and are eating more, you're gonna really see your ph start swinging.
 
Dgirl666

Dgirl666

Active Member
The reservoir is a 20 gallon, I'm just only filling it only half way. How much is the ppm meter gonna cost me? Feed too light??? I'm using what the bottle says 2 teaspoons per gallon of water, should I go to 3 teaspoons I was afraid I would burn them with too much... I really do appreciate all the good advise!!!
 
Silky Shagsalot

Silky Shagsalot

Well-Known Member
Dgirl666 said:
The reservoir is a 20 gallon, I'm just only filling it only half way. How much is the ppm meter gonna cost me? Feed too light??? I'm using what the bottle says 2 teaspoons per gallon of water, should I go to 3 teaspoons I was afraid I would burn them with too much... I really do appreciate all the good advise!!!
Click to expand...
if your ph is constantly unstable, try putting another 5 gallons in the rez. if your plants are looking a bit hungry, increase feed strength by 1/4. you'll find out pretty quick if that's the cause. that's what i like about hydro, things happen quickly. you just have to be sure to keep up with them. so if you're using 2 tsp. per gallon, use 2 1/2 tsp. a ppm meter is fairly cheap. i get most of my stuff on e-bay.
 
R

rdecosta88

New Member
Dgirl666 said:
Will that put a shock on them if they go without water for 6 hours, after having the almost constent flow for so long?
Click to expand...
no it doesnt shock em at all. the schedule i have works really well ive found so far. I have my ppm at 1200, ph stays between 5.5 and 6.5, room temps when lights off 68-70 - lights on 75-77 the humidity 40-45%. and im using a 400w mh/hps. Things are going pretty good so far. I hope to have the ppm up to 2000 by mid flower. then it will be at full strength and hopefully some really tight nugs!!!
But ya man just watch the plants like everyone says! they will tell you what they want!
 

Attachments

G

growingwild

Active Member
you def. need a ppm meter you can`t always go by what the bottle saying you can pick up acheap one @ hydro shop or like another member said on ebay.but the ones on ebay don`t always come calabrated the grow shop in my town does it for you when you buy it.me my self i like the oakton they are water proof i went throw 3 of the cheap ones.they don`t float 2 good LOL.
 
Jonus

Jonus

Well-Known Member
Until the roots are coming out the bottom of those rockwool cubes they will only need flooding every other day. Once the roots come out then you can up that to once a day. The other point is how are the roots going to grow out the bottom of those cubes?
 
Dgirl666

Dgirl666

Active Member
Jonus said:
Until the roots are coming out the bottom of those rockwool cubes they will only need flooding every other day. Once the roots come out then you can up that to once a day. The other point is how are the roots going to grow out the bottom of those cubes?
Click to expand...
Hey everyone thanks for the good advise. My plants are doing well. They are about 6 to 7 inches tall now and I was thinking of sending them into flower stage... The ppm's is holding steady at 1500 and the ph is fluctuating at between 6.2 and 6.7. How long after I start the flower process will it be till I can harvest? Also should I raise the lights or stay at about 12 inches from the top of the plants?
 
P

Peter421

Well-Known Member
Dgirl666 said:
Hey everyone thanks for the good advise. My plants are doing well. They are about 6 to 7 inches tall now and I was thinking of sending them into flower stage... The ppm's is holding steady at 1500 and the ph is fluctuating at between 6.2 and 6.7. How long after I start the flower process will it be till I can harvest? Also should I raise the lights or stay at about 12 inches from the top of the plants?
Click to expand...
Depends on strain. Indicas can take up to 810 weeks where some Sativas can take 7-9 weeks to mature. If you could, low the Ph a little and maybe lower the PPM but I'm not too sure. 1500 seems a lot for seedlings. I use just a little less than that for flowering right now. As for the lights, a foot away is good as long as your hood is glass protected
 
SoILLProvider

SoILLProvider

Member
you never want to water when the lights are off. During the dark period whether its in veg or flower, the roots become more active and also uptake oxygen. This can also lead to bacteria forming. Water before lights out and when they come back on
 
You must log in or register to reply here.
Top