Run off ec is spiking

[Jonnyboi84]

Hey guys just here for a bit of help and guidance if possible, so I've currently got 4 green gelato growing in coco 2 and a bit weeks into flowering, and I'm religiously check my run off ec after every feed and everything's been going fine up until now ! And I've no idea why coz I've changed nothing but yeah I'm currently growing in canna coco professional plus feeding the shogun range, i feed them 2 hours before lights go off and 2 hours after they come back on roo a good amount of runoff everytime, but the last few days my ec has risen quit alot, my ec going in is at 1.6 PhD to 6.2 and my run off tonight is 2.6ec, and as I say I'm just scratching my head clueless as to what's going on because as I say I've not changed anything plants look healthy right now but it's literally just been happening the last couple of days and if something is wrong I want to nip it in the bud before I get any problems. So if anybody has any ideas please help a brother out, any advice is much appreciated

 

[SweetLeafGrow]

Glad to have you here johnnyboi.

I am in hydro dso I'm not going to be much help but there are a lot of great coco growers here that will likely chime in when they see your post. Good luck with the issue, will be watching to see how it goes for you!

 

[Jonnyboi84]

Glad to have you here johnnyboi.

I am in hydro dso I'm not going to be much help but there are a lot of great coco growers here that will likely chime in when they see your post. Good luck with the issue, will be watching to see how it goes for you!

Cheers bud

 

[Anthem275]

Hey guys just here for a bit of help and guidance if possible, so I've currently got 4 green gelato growing in coco 2 and a bit weeks into flowering, and I'm religiously check my run off ec after every feed and everything's been going fine up until now ! And I've no idea why coz I've changed nothing but yeah I'm currently growing in canna coco professional plus feeding the shogun range, i feed them 2 hours before lights go off and 2 hours after they come back on roo a good amount of runoff everytime, but the last few days my ec has risen quit alot, my ec going in is at 1.6 PhD to 6.2 and my run off tonight is 2.6ec, and as I say I'm just scratching my head clueless as to what's going on because as I say I've not changed anything plants look healthy right now but it's literally just been happening the last couple of days and if something is wrong I want to nip it in the bud before I get any problems. So if anybody has any ideas please help a brother out, any advice is much appreciated

You are having a build up of salts in the media. Fix is to pour 2 times the pot container of straight water thru the media. Goal is to flush out as much of the dried salts as possible. After you have flushed the media rehydrate the media with like 400 PPM of your nutrients. Also you are running the PPM a little high for my liking. I would say around 600 PPM on the .5 scale and increase the ferrigations

 

[Jonnyboi84]

You are having a build up of salts in the media. Fix is to pour 2 times the pot container of straight water thru the media. Goal is to flush out as much of the dried salts as possible. After you have flushed the media rehydrate the media with like 400 PPM of your nutrients. Also you are running the PPM a little high for my liking. I would say around 600 PPM on the .5 scale and increase the ferrigations

Thankyou for the advice pal I will give that a go next feed do just plain tap water obviously I'll ph it but nothing else ?

 

[Aqua Man]

Cannabis high fertigation coco by Aqua Man

So first off COCO is NOT soil. For best results we want to keep it saturated between 90-100% that does not mean you can't go below this but you may see slower growth or nutrient issues over time if your consistently letting COCO get to dry. Coco has an amazing gas exchange and air holding...

budbuilders.org

 

[Aqua Man]

Feed more frequently imo as the plant grows you need to adjust fertigation frequency . I agree flush with 3x pot volume. I prefer 600-800ppm coco but you need to adjust frequency of feed ot else you need a lot of run off to reduce the buildup.

Check out the thread i linked above

 

[Jonnyboi84]

Feed more frequently imo as the plant grows you need to adjust fertigation frequency . I agree flush with 3x pot volume. I prefer 600-800ppm coco but you need to adjust frequency of feed ot else you need a lot of run off to reduce the buildup.

Check out the thread i linked above

Thankyou, you helped me out before on farmer I appreciate it and that was going to be my next question. What if adjusting frequency isn't an option without changing my whole schedule ? Because my lights come on at 10 pm at night and then go off at 10 am so I only have a couple hours on a night and couple in a morning, so wud watering to more runoff instead do the trick ?

 

[Max]

I had this problem but was only feeding once in 5 gals using pre buffered 70/39 coco/perlite ..I reduced pot side to 15 litre and added chunky perlite and havnt had a problem since. But I hardly ever go over 600 ppm through flower I’m running anywhere between 3 litres to 4litres with lots of runoff.

 

[Aqua Man]

Thankyou, you helped me out before on farmer I appreciate it and that was going to be my next question. What if adjusting frequency isn't an option without changing my whole schedule ? Because my lights come on at 10 pm at night and then go off at 10 am so I only have a couple hours on a night and couple in a morning, so wud watering to more runoff instead do the trick ?

So feeding is more necessary during lights on because thats when okants drink the most. So if you can water at lights on and halfway through the light cycle that should give you less dry back and help with your issue

 

[Jonnyboi84]

I had this problem but was only feeding once in 5 gals using pre buffered 70/39 coco/perlite ..I reduced pot side to 15 litre and added chunky perlite and havnt had a problem since. But I hardly ever go over 600 ppm through flower I’m running anywhere between 3 litres to 4litres with lots of runoff.

Thanks for the advice bud

 

[J1sonbrother]

Any pics ? Any nutes burn or plants stress ? pure coco or perlite coco substrates?
I have ever checked runoff is when I had visible plant issues,imo if the plants are healthy, there is no way to test runoff ,sometime I do feel measuring runoff in coco, will just get you chasing demons.
My 2 gals pure coco hit with 1.9ec/5.7ph, but my runoff are way out of sky which gets 3.0ec/6.7ph out.
Maybe there's something wrong with your environment? Or frequency of irrigation ?

View attachment VID_20231010_180120_939.mp4.mp4

 

[Jonnyboi84]

Any pics ? Any nutes burn or plants stress ? pure coco or perlite coco substrates?
I have ever checked runoff is when I had visible plant issues,imo if the plants are healthy, there is no way to test runoff ,sometime I do feel measuring runoff in coco, will just get you chasing demons.
My 2 gals pure coco hit with 1.9ec/5.7ph, but my runoff are way out of sky which gets 3.0ec/6.7ph out.
Maybe there's something wrong with your environment? Or frequency of irrigation ?

View attachment 24938

No bud my plants look fine but the ec has only just recently started spiking
View attachment 20231008_230735.mp4

 

[tobh]

as Aqua Man said, you're getting too much dry back. I wouldn't flush with straight water, 1/4 strength nutrient solution is better as straight water will completely offset the cation exchange in the media and you'll have other weird problems as a result afterwards. When i was in coco, I'd flush with 1/4 strength nutrients until runoff equaled what I was pouring in, then go back to full strength right after.

so your corrective actions are:

1. flush the media to eliminate any residual salts
2. increase fertigation to 3x+ a day

good job keeping an eye on things and catching a potential problem before it became a problem! a lot of growers tend to ignore problems until they're bigger issues to contend with.

 

[Aqua Man]

as Aqua Man said, you're getting too much dry back. I wouldn't flush with straight water, 1/4 strength nutrient solution is better as straight water will completely offset the cation exchange in the media and you'll have other weird problems as a result afterwards. When i was in coco, I'd flush with 1/4 strength nutrients until runoff equaled what I was pouring in, then go back to full strength right after.

so your corrective actions are:

1. flush the media to eliminate any residual salts
2. increase fertigation to 3x+ a day

good job keeping an eye on things and catching a potential problem before it became a problem! a lot of growers tend to ignore problems until they're bigger issues to contend with.

100% agree. And after watching the video I think he also has a bit of wind burn

 

[Jonnyboi84]

100% agree. And after watching the video I think he also has a bit of wind burn

Haha I thought that too as it happens when I took the video pal so I've turned the fan down to the lowest setting

 

[Jonnyboi84]

as Aqua Man said, you're getting too much dry back. I wouldn't flush with straight water, 1/4 strength nutrient solution is better as straight water will completely offset the cation exchange in the media and you'll have other weird problems as a result afterwards. When i was in coco, I'd flush with 1/4 strength nutrients until runoff equaled what I was pouring in, then go back to full strength right after.

so your corrective actions are:

1. flush the media to eliminate any residual salts
2. increase fertigation to 3x+ a day

good job keeping an eye on things and catching a potential problem before it became a problem! a lot of growers tend to ignore problems until they're bigger issues to contend with.

Thankyou for the advice I'm glad you said that coz I was gonna start flushing it with plain tap water in half an hour, the only problem with feeding 3 x a day is I'd have to change my schedule coz right now the lights come on at 10 pm and then go off at 10 am so I'd have to get up in the middle of the night to feed them because I'm hand feeding, either that or give them a feed when lights are off, or wud I be okay to give them a quick feed when lights are off ? I always thought that was a big no no buti don't actually know for sure

 

[LJFarming]

There are 500 options available and IMO they are all the same PIA. This one goes up to 18 events per day and more importantly down to the second if you decide to set up a high fertigation drip system and reservoir.

Multiple fertigations is the only way to get the benefits and avoid the problems with coco IMO.

$16 US from uncle Bezos on Amazon. Ha