So, everything was going OK… until I transplanted to their final containers (after around 4 weeks in seedling pot and then 2 liter pots) , and 3 days later they look very unhappy.
They are in pre-buffered coco, with 30% perlite. EC 1.2/1.3, PH 5.9/6.1. Under LED lights. They look over-watered? Is that possible? I have been watering once a day.
Any idea whats going on? I hope a wise soul can advise and save their lives. Pictures below
thank you
do they need it?
they indeed do 
what kind of temps are you running?
I hope they can also there are lots of them here 
tell us more please
Dequilo
Hello! And thank you for the reply.
Temp is in the region on 20c-24c.
I have been following the “cocoforcannabis” method, which advises fertigation multiple times per day, claiming it isn’t possible to over-water in coco, and that frequent watering with runoff leads to a stable EC and PH with nutrients always available to the plant.
Perhaps the root system isn’t developed enough for daily watering at this point? I have used this method in the past and had great results so I really don’t understand what the problem is 
68 F to 75 F how cold is you pots? I know under LEDs I have been running my
air temperature around 27.7 c - 28.3 c with outstanding growth in soil-less
what is the leaf temp? at your temp they may be a bit cold
all the best and grow well
Dequilo
Welcome to the forum!
Thanks, nacho 
Have u watered til runoff. Id say check the ph of the outcome water. Let some drip then check the runoff water for ph especially. It does look o wr watered but when i had this issue it turned out to be the ph was off in the medium running high at 6.4ish also had a set run low at like a 4.7 and looked similar also. Next water for sure try and let water run out of pot some then catch enough to get a good reading from. Imma lean towards possible ph issue in the spil. Can be fixed pretty simple but takes time for plant to start to look okay again. Have u calibrated the ph meter recently or at all??
Hi Mark,
Yes, I water with runoff. I also check the PH with 2 calbirated meters … I will double check the calibration and check the PH of the runoff!
with runoff, I mean till runoff 
some more info…
runoff ec is the same as inflow EC. However, runoff PH is 7.1!
Also, I sprayed them with calmag foliar spray before lights out and they were looking a bit better at lights on… and then a few hours later they started looking limp and sad again. Could be relevent?
it could what is your VPD? they might be drowning
thanks
Dequilo
When u wayer cut the ph down to like a 5.0 and do a slow soak and see what the putcome comes out themn. If lower but not low enoigh do the same thing til runoff comes put as close to 5.8 as u can het it. Always try and wayer at 5.8 or Tleast between 5.8 and 6.0 at highest unless u have a problem
OK, I will try that. many thanks for the advice
Hi @ladyjay welcome to the fam. How’re things in the meantime?
About that possible calcium shortage: can you tell us the EC reading of your plain water?
Hello! Things are not particularly great. So I had to throw them into flowering due to time constraints. I think have improved slightly but still look ill!
I switched to Advanced Nutrients Sensi Coco for flowering. Currently 2 weeks in and feeding at EC of 1.2. I use RO water, so water before nutes is EC 0. I was adding calmag during veg (to get EC up to 0.4 before adding A+B) as I was using Canna Coco for that phase.
I contacted Advanced Nutrients and they said no supplemental calmag is required with the Sensi Coco range, so I’m not currently adding calmag. Here’s how they look now (not very good):
They look like they r picking up oretry good.
