Cropsteering In-depth daily journal using TrolMaster

[jb420710]

Oops

 

[tobh]

man those are looking fantastic now! excellent work!

 

[Observationist]

AlgaCubes srsly

nice looks pretty cool

ima need to do a RW grow at some point.

 

[jb420710]

Can anyone tell me what’s going on and how to fix it please lol

 

[tobh]

htat almost looks like temperature purpling. possibly P. what are all the details as of now? temp, rh, leaf surface temp, input EC and pH, runoff if you have it, full nutrient lineup. the whole story even if you're not sure a detail matters, add it. give us the full debrief. @Dirtbag you seen this before?

 

[jb420710]

Well they were in perfect health it was looking like right before I left for vacation on Christmas... I was gone the 25 in the morning until the 28th at night. The person that was watching them let them get really really dry.. haven’t been the same since. the younger seedlings that were in 4 x 4 cubes pretty much died lol I brought them back and took 6 clones of each that made it back.. I was running 3.0 ec Athena pro line until Christmas looking great..but weren’t coming all the way back so I’ve been heavily flushing with 2.0 ec making sure I get a lot of run off

 

[jb420710]

You can see when I got back on the 29th

 

[jb420710]

That’s the video he sent me while I was gone that made me think I could relax and have some fun hahahahaha

 

[jb420710]

Here’s what they look like right now what should I do

 

[jb420710]

...

 

[jb420710]

What should I do to get them back happy

 

[tobh]

man..... those roots are cooked. the plants are focused right now on rebuilding some kind of uptake system. if you were running 3.0 EC, and they dried out, the roots lost pretty much all their ability to uptake anything. simple as that. they're damaged. dial the lights back a lot, and drop your EC even lower.

None of us that run rockwool exceed max 1.8 EC regardless of what our nutrient manufacturers say. Front Row AG told me the same thing. "in that much media you can bump up EC quite a bit." fuckin clowns.

you're in savior mode right now. 1.4-1.6 EC, lights at 40% ish, keep VPD in check, and they'll bounce back in a week. right now you DO NOT want to be trying to push them. they need to find their feet (roots) again and get back to uptaking water at minimum. The high EC spike cooked all the root hairs so they're droopy because right now they can't uptake anything including water.

I dare say it might be worth restarting even. This run's yield is gonna be disappointing given the stress these have gone through. might be best to reset and start new. I understand the cost to start new but you're gonna spend just as much running this one and not breaking even whereas you could eat a lost run and come out in the black by culling and going forward.

@PK1 you have any input? @Dirtbag what about you?

 

[jb420710]

Someone save my garden please lol

 

[tobh]

ambient temp is waaaaaayyyyyyy too low for that light intensity and RH. the stomata aren't even open at that temp. Get it up to ~80F and watch em perk back up.

 

[Dirtbag]

I like your approach! I’m a longtime Rockwool grower, totally new to crop steering but I just started using an Aqua-x this cycle

You should have a lot more growth by now, let’s figure out what’s slowing things down a bit.

Why are you defoliating so heavily?
How do the roots look at the bottom of the cubes?
I have a feeling you may be overwatering a bit and not letting the roots establish throughout the cube.

@Dirtbag if you don’t mind me asking, what do you think?

View attachment 1195948

Don't know how I missed this tag, sorry dude. I agree, the heavy defoliating early on isn't beneficial and those cubes tend to get overwatered easily and lead to rootzone issues.

 

[Dirtbag]

Yeah I would drop that nutrient and run something else in the 500-650ppm range. Or just use that nutrient in a lower dose.
Also bumping temps and a couple other things could help. Do you use tap water? RO? How many times per day do you feed? How much per feeding?

 

[harmonics]

@jb420710 Sorry for your troubles, listen to Dirtbag he’s very knowledgeable when it comes to Rockwool and could help you get these girls back on track.

I agree that you should increase your air temperature to allow the plants to transpire correctly. You want the plants leaf temperatures to be 78+ degrees, ideally closer to 82 degrees since you are running Co2. The one issue I have with my Trolmaster is the master controller dims the lights if the air temperature raises above 85 degrees. Too reach proper air temperatures without issues I have to cheat the system by having a small fan blowing near my temperature sensor when I’m really trying too maximize the room without having dimming problems.

Don’t worry about VPD until the room is properly situated, the biggest problem I had with the LED learning curve was focusing too much on that #
(My personal problem was I thought I had my VPD at “ideal” numbers so I thought my room was functioning properly, but my room was too cold for the plants to transpire and drink properly.) Turning the air temperature up to 82+ degrees solved all those problems; but I run Co2 as well

 

[jb420710]

Yeah I would drop that nutrient and run something else in the 500-650ppm range. Or just use that nutrient in a lower dose.
Also bumping temps and a couple other things could help. Do you use tap water? RO? How many times per day do you feed? How much per feeding?

Well what I’ve been doing lately since they almost died has been completely saturating them with 1.8 - 2.0 ec and getting run off and letting them dry out before I water again. And I usually use RO but sometimes I use the waste hose from RO system to fill up res if I can’t wait for it to fill up. I’m filling up5 gallon buckets right now with RO because I haven’t got a resivior yet and sometimes I need some water ASAP and I can’t wait for it to fill up so that’s why i use the waste water sometimes

 

[Dirtbag]

Well what I’ve been doing lately since they almost died has been completely saturating them with 1.8 - 2.0 ec and getting run off and letting them dry out before I water again. And I usually use RO but sometimes I use the waste hose from RO system to fill up res if I can’t wait for it to fill up. I’m filling up5 gallon buckets right now with RO because I haven’t got a resivior yet and sometimes I need some water ASAP and I can’t wait for it to fill up so that’s why i use the waste water sometimes

That isn't good, when they dry up a lot the ec spikes in the media.
You want to keep the rockwool 80-90% saturated at all times during veg, 60-90% roughly in flower, with at least half of your daily feedings having some runoff.
A 6" cube should be fed small shots of nutrient solution anywhere from 8-12 times per day to keep it always wet. You absolutely do not want to let it dry out between feeds, especially not at a higher ec feed rate. Young plants on gas, 1.5-1.8ec is great, but you need to feed a lot more often to prevent the nutrients spiking in the wool.

 

[Dirtbag]

Also, you should start with water you know is good. RO needs calcium and alkalinity added back to it, it's not great on its own. Should be about 150ppm ideally +/- 50ppm, before adding nutrients