Delps 8 Hydro RDWC Gorilla Glue Autoflower 2021

Roots in the water! Woohoo! You’re on the way to seeing them grow like crazy.
But why did you decide to not use cal-mag? It’s kind of a given with RO water, unless your nutes provide ample quantities. Most don’t.
 
Rider
Yeh, it was pretty cool when I picked up a net pot and saw the roots! I hope they grow like crazy - I’ll stop calling them LSF’s.

Hmm, must have put it the wrong way (I’m trying to write here while I write software. Not to worry, though. The FAA will find the bugs…) I wanted to head the calcium deficiency off at the pass to I added the amount of calmag that would have been added if I had used full strength nutes.

When I filled the res, I went with ½ strength, including CalMag. My thinking was that I should up the CalMag to full strength. Well intentioned but I also believe it was incorrect because that would add a lot more cal and mag without upping the other nutes and that would give me an imbalance. Last evening I decided to redo the res and remove all doubt. Right now,

Full strength Botanicare nutes ("expert” concoction) results in an EC of 1.1 so I had to bail a couple of gallons out and replace with RO water.

Kidding about the FAA, BTW.
 
Kidding about the FAA, BTW.
Uh huh... when I see an uptick of near-miss activity on FlightAware I’ll know! “Flight Delps8 Heavy you are cleared for take-off... I think. Just ummm, watch out for other planes. We seem to be experiencing a slight glitch in the system.” :laughtwo::laughtwo::laughtwo:

“Flight Delps8 Heavy, please turn heading EC 1.0”
 
Too funny!

I just picked the FAA because everyone knows what that is. I haven't heard about this issue in years but the FAA system was famous for being…"falling apart". AFAIK, it's a real mess despite various efforts to update it. There are much better ways to fly high than in an airplane.
 
The calm before the storm, perhaps? Refilled the res and it’s been calm as can be.

Redid the res to 1.0 and 5.8 yesterday. I didn’t use the AN Tarantula in the new res. I submitted a support inquiry on AN’s website about using Tarantula with HydroGuard, even though the label says that it’s compatible with all benes. I’d prefer to hear their tech support people confirm that before I go pouring $100 per gallon liquid into 35 gallons of nutes. No response from AN TS.

In addition to wanting confirmation about compatibility before I took the plunge, I can’t find any indication that there’s still an issue. I’ve checked all of the net pots and the hoses and there’s no trace of the slime that I found the other day so I decided to hold off on the Tarantula.

Per the pix, they’re adding leaves and roots. The growth above “ground” looks more like adding leaves than adding height but the root growth really surprised me. I mixed the Botanicare nutes at full strength and ended up with an EC of 1.1. I was concerned about using an EC that high so I bailed out some of the nutes and added RO water to get it down to 1.0. That’s on the high side for plants of this age but I’m getting in the mindset of using their guidelines as guidelines and “listening to the plant”. No sign of ill effects of going with 1.0.

Besides those changes, nothing. I’m using Inkbird controllers - I refer to them as Hotbird and Wetbird. They’re keeping the tent weather right at a VPD 0.8. I’m taking lea surface temps at mid-morning and mid-afternoon. It was +1 this morning so I put that in the PulseOne and the big change was to drop the setting on Wetbird by 1%. BFD. Temps are stable with not heat or cooling. So very nice of the SoCal weather to have such mild temps. The only thing that’s changing is that pH is down to 5.7. BFD again.

Light level is 310-320 PPFD or a DLI of 315*.0648 (that’s the factor for 18 hours of light). That’s a fair amount of light but there’s no indication that it’s too much. No cupping or praying so I’ll leave it at 320 for today and increase it over the weekend.

Many of the electrical devices are controlled through a Kasa smart strip. I went that route after dumbshit me fouled up the light timer after an electrical outage and the grow revegged. This time around, I set the schedule for each device in the Kasa. I can control the power to each outlet on the smart strip and the schedule is downloaded to the smart strip as well so I don’t have to be present to turn things on and off. I just let the computer (the iPhone) and the smart strip do what they’re designed to do and then leave it alone.

Anyone with an opinion on what’s going on with Joe? It looks like a calcium issue to my newbie eye but I’d appreciate some input on that. The res is at 1.0 using the portions recommended by Botanicare and that includes CalMag. I was hoping that putting in the right levels of nutes/CalMag would clear that up but it’s hard to tell if it’s improving. Maybe I should think of it differently - it’s not getting worse.

Everything’s working the way I wanted it to. One problem though - it’s boring. Poking on the iPhone to see what the Pulse is reporting and then taking pictures once or twice a day and that’s about it. Or is it the calm before the storm?

Joe 2021042301.png


Hamilton 2021042301.png


Reynolds 2021042301.png


Frank 2021042301.png


Roots 2021042301.png
 
Everything’s working the way I wanted it to. One problem though - it’s boring. Poking on the iPhone to see what the Pulse is reporting and then taking pictures once or twice a day and that’s about it. Or is it the calm before the storm?
Oh, buddy, that’s the beauty of getting things dialed in. To mix the res and have it remain stable for a week is heaven. On my last grow I routinely went two weeks between res changes and otherwise didn’t even visit the grow after everything was supercropped and cruising along in flower. Enjoy it!
 
Rider - Here's to hoping it lasts. Lots of energy, brainwaves, and $$ and then _____________ crickets. Very different. Feels weird not having to do something.

“Grow ya little bastads, grow!"

I chose AF’s because of the short seed to weed time. After reading up on VPD, there’s little reason to do that. When I did the grow in 2017, it was mid-Summer and I busted my hump to find a room A/C unit. I got the big dog Whynter_ unit for cheap and then I had the “fun" of rigging it up. I didn’t want to go through that again (I gave the A/C unit away) so I went with autos. Then I find out that you can crank the temp way up as long as you push the RH and keep the fans running. The upside is that I get to learn something about autos but I feel like I’m playing hopscotch in a minefield.

My frame of reference is off because of the 2017 grow - I’m seeing what’s in the res now vs “11 days in the res” which is from the 2017 grow (AK-48’s). Remember “Where’s the beef?”

11 Days in the Res in 2017.png


Whynter setup.png
 
Just got a reply from AN tech support:

"Yes you can run Tarantula alongside the Botanicare Kind Expert program.

Our Range of beneficial microbes keeps the roots in check
Voodoo Juice, Tarantula and Piranha all have beneficial microbes to keep the roots safe.

Hydroguard is just 1 strain of bacteria.

Voodoo juice, Tarantula and Piranha will give you MANY MANY strains of protective microbes."

Good to know.
 
Woke up this morning with a wineglass…Ah, not today. Today I woke up to an iPhone that indicating that the humidifier was out of water. It fired up at 3 AM and then sat 5 but sputtered out right after that. RH was 50 something in the tent. After filling up the humidifier, I took the leaf temp - it was +7. Ouch. All of 'em were pissed of at me!

I took the leaf temps 5 minutes later and they were down to <=+1. Glad to see that they responded that quickly.

Took the family portraits and checked out Joe's nute issue. Compare the pix from 20210423 and the one from today. The brown area is growing and there's a small spot in the vein now. So much for a fresh res solving that issue.

To my newbie eyes, the spots look like insufficient calcium but this is the tip of a flower on a low branch so I'm thinking that's not "new growth".

Another cause could be too much potassium. I'm using the Kind Expert nutes but I couldn't find Rhizo Blast so I swapped in GH's RapidStart. They're really close in terms of their NPK balance but that's the only deviation from the feed schedule.

What's causing this - any ideas?

Joe nute issue 20210423.png


Joe nute issue 20210424.png


Res-level view.png
 
Woke up this morning with a wineglass in my hand…ah, not today. Today I woke up to an iPhone that indicating that the humidifier was out of water. It fired up at 3 AM and then sat 5 but sputtered out right after that. RH was 50 something in the tent. After filling up the humidifier, I took the leaf temp - it was +7. Ouch. All of 'em were pissed of at me!

I took the leaf temps 5 minutes later and they were down to <=+1. Glad to see that they responded that quickly.

Took the family portraits and checked out Joe's nute issue. Compare the pix from 20210423 and the one from today. The brown area is growing and there's a small spot in the vein now. So much for a fresh res solving that issue.

To my newbie eyes, the spots look like insufficient calcium but this is the tip of a flower on a low branch so I'm thinking that's not "new growth".

Another cause could be too much potassium. I'm using the Kind Expert nutes but I couldn't find Rhizo Blast so I swapped in GH's RapidStart. They're really close in terms of their NPK balance but that's the only deviation from the feed schedule.

What's causing this - any ideas?
 
I bumped the pH to 6.0 to increase calcium absorption. That's the "what" and the "how". The "what" I want to accomplish is to increase calcium uptake because my little brain thinks that the spots on the leaf indicate a calcium deficiency. Options for the "how" (to accomplish that) are to increase the amount of calcium which I can only do right now by adding more CalMag or, second, by bumping the pH into the range where calcium uptake will increase.

The second option was preferred approach because the issue is localized and I'd rather take an incremental approach instead of adding more nutes to the pool. OK, bumping the pH takes a few CC's of Up and it's a done deal.

Not so fast, pilgrim.

I know all about leaving the pH at 5.8 and it will "swing" up and down (you boomers in the back - stop laughing at "swing") but the pH has only varied by 0/-1) in the past two weeks so I'm not going to hold out hope on that approach. I want to bring the pH to a level where calcium uptake will be increased but that seems to be a moving target.

I've attached pix of six nutrient availability charts that appear to be from reputable sources. I gotta ask "who's on first"//"does anybody know what time it is"//"WTF" (readers choice). No wonder we smoke weed! Someone has to have done the research on this so there have to be valid numbers somewhere but some charts indicate that calcium uptake will increase as I move from 5.8 to 6.0, some say the opposite. I'm leaning toward "WTF".

Hakuna Matata moment - leave it at 6.0, refill the vape, crack open the zinfandel and enjoy the pizza, and check things out tomorrow.

Nutrient Availability Science in Hydroponics.jpg


Nutrient Uptake Chart Grow Weed Easy.png


Nutrient_Uptake_and_pH.jpg


Organicgardensupply.com.jpg


Someone's Nutrient Chart.gif


Someone's Nutrient Chart.png
 
I dropped the pH to 5.8 late last night and Joe's nute issue seems to be progressing. Any suggestions?

Today, seeing that these plants are in veg, I upped PPFD to 430 (DLI of 28) and changed VPD target from 0.8 to 1.1. I'll check the leaves before lights out to see if there's an adverse reaction to the light increase.

Other than those quick changes, I'm doing the Maytag repairman thing here.
 
Hi @Delps8

Sorry I missed your updates- feel free to tag me if you're experiencing problems. I may not always know the answer, but I'll help find it, or someone who does know.


That's not a deficiency to my eyes. It might be, definitely keep an eye on it.
Looks to me like one of two things-

1st thought would be water got onto it, a bead of water will act like a magnifying glass.

2nd thought- flip underside of leaf- use microscope preferably or phone, and check for pests to be safe.
 
I dropped the pH to 5.8 late last night and Joe's nute issue seems to be progressing. Any suggestions?

Today, seeing that these plants are in veg, I upped PPFD to 430 (DLI of 28) and changed VPD target from 0.8 to 1.1. I'll check the leaves before lights out to see if there's an adverse reaction to the light increase.

Other than those quick changes, I'm doing the Maytag repairman thing here.
Wait- it's progressing?

Any pics?
 
Rexer - I've attached pix taken on three consecutive days and when I look really close, I think my statement is incorrect. I think things look better but it's not easy to tell.

IMG_3096_M1 is a reduced size image (the full size image is 15 MB) and it looks like the spots to the upper right of the main area of damage look smaller and lighter than the same area in the pix from 4/24. It's not easy to tell, even in the full sized image and it could be confirmation bias at play.

What do the pix look like to you?

IMG_3096_M1.jpg


Joe nute issue 20210423.png


Joe nute issue 20210424.png
 
Hi @Delps8

Sorry I missed your updates- feel free to tag me if you're experiencing problems. I may not always know the answer, but I'll help find it, or someone who does know.
Thank you. Much appreciated.

That's not a deficiency to my eyes. It might be, definitely keep an eye on it.
Looks to me like one of two things-

1st thought would be water got onto it, a bead of water will act like a magnifying glass.

2nd thought- flip underside of leaf- use microscope preferably or phone, and check for pests to be safe.
Ding, ding, ding!

"a bead of water" - yup, that did happen. That's the plant that had the white slime issue and, at some time in the process, water from the res ended up on that leaf.

Rexer for the win!

[edit]
OK, new theory is that this is because nute water got on the leaf and the tiny change//the change I think I see in the pix today vs yesterday is the leaf healing. I'm more than happy with that theory. We'll know more in a day or two.
 
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