Rex's Perpetual Hydroponics, LED, 4x4 Tent Using TBC 10 Gal System: All Are Welcome, Come Learn & Help

[Rider509]

100 L = 26.5 gallons for 4 plants I would get a each plant 500ppm at this point of MC so rdwc I would put however much MC in that system as you needed to get it to 2,000 ppm... 500 ppm for each plant.

Unless I’m misreading this, it doesn’t work that way in a recirculating system. Each plant in the system will see the total nutrients.

 

[Rexer]

Lights off pictures show some improvements I believe. The only exceptions being the nute burn? Along the edges on one plant, and the cal mag deficiency looks to be continuing.


Oh and this is my cal mag

The SuperSkunk

Edit- so after looking at those photos I belive I see some nitrogen toxicity On the one plant? Or is that just me

 

[Rider509]

What I’m seeing looks more like a calcium deficiency. With nitrogen toxicity your leaves become very dark green with tip burn. Calcium starts with interveinal chlorosis before becoming brown spots. But then, magnesium deficiency looks very much the same. It’s maddening to try to figure out what the hell the plant is telling you.

 

[DonkeyDick]

Well it sure would be good to see you get on top of it. I have no clue with a hydro rig, but I’m here to cheer you on.
I sort-of agree with the logic that each plant will get whatever ppm you set the res to, although that sounded damn good advice from a hydro point of view!

Give that Cal/mag a hoon!
That must be the canna equivalent of working in IT. “Have you tried switching it off and turning it on again?” / “Have you tried cal/mag?”

 

[TheZebraKing]

I should have put a warning saying I have never ran RDWC before, only DWC. In my DWC buckets the plants will eat 600 ppm overnight, so I assumed you would want to feed 4 plants more then that but now that I think of it your plants don’t get res refills like mine, different size res, plus other variables, so bad advice on my part and I realize that. I apologize Rex.
Again it was just an opinion, one that I also said to wait for more responses from... I didn’t think people would start throwing jabs at me for trying to help the man out. Especially ones that have nothing useful to add. If you have better advice then by all means give the OP what he’s asking for instead of trying to slam me for advising food and cal/mag. Lol I’ve seen you do this to other people on the forum as well, your like an ogre under the bridge.

 

[DonkeyDick]

No-one’s jabbing, ZK. You have more expertise than us, me anyway.
If @MrSauga sees the saugasign in the sky he can read leafsign like an oracle.
(Wassup Saugs? I couldn’t raise you with a full stop in your @handle. Are you no longer staff? Good to see your dog again btw.)

 

[Rexer]

I should have put a warning saying I have never ran RDWC before, only DWC. In my DWC buckets the plants will eat 600 ppm overnight, so I assumed you would want to feed 4 plants more then that but now that I think of it your plants don’t get res refills like mine, different size res, plus other variables, so bad advice on my part and I realize that. I apologize Rex.
Again it was just an opinion, one that I also said to wait for more responses from... I didn’t think people would start throwing jabs at me for trying to help the man out. Especially ones that have nothing useful to add. If you have better advice then by all means give the OP what he’s asking for instead of trying to slam me for advising food and cal/mag. Lol I’ve seen you do this to other people on the forum as well, your like an ogre under the bridge.

You have nothing to apologize for!

You have experience, and I understood what you meant.

I don't think anyone was slamming you brother? Rider just explained why that approach wouldn't work. Your logic was not disputed either on what's needed, only application. Not anything else, at least that's what I read?

Talk on such things is a way to learn, and that's what this place is about . You came to help, and learned something new about RDWC.

You did say to wait for others, and I am. There is nothing to worry about, if my mistakes help others to learn along the way, then it lessens my loss.

 

[TheZebraKing]

No-one’s jabbing, ZK. You have more expertise than us, me anyway.
If @MrSauga sees the saugasign in the sky he can read leafsign like an oracle.
(Wassup Saugs? I couldn’t raise you with a full stop in your @handle. Are you no longer staff? Good to see your dog again btw.)

Ok it’s 100% possible I read things out of context, it sure seems like I did. Again apologies are in order, sorry friends, I blame it on the dabs haha and my bad eyes. (Currently using one eye to read without double vision) time for me to take a break and rest my eyes. I’ll catch up later guys, have a great day!

 

[Rider509]

I must have missed something in previous posts but I was def not jabbing you, @TheZebraKing! Just trying to help a brother out as were you. We’re all learning here and having so many eyes on a grow has been invaluable to me now and in the past.

 

[Rexer]

No-one’s jabbing, ZK. You have more expertise than us, me anyway.
If @MrSauga sees the saugasign in the sky he can read leafsign like an oracle.
(Wassup Saugs? I couldn’t raise you with a full stop in your @handle. Are you no longer staff? Good to see your dog again btw.)

Ok it’s 100% possible I read things out of context, it sure seems like I did. Again apologies are in order, sorry friends, I blame it on the dabs haha and my bad eyes. (Currently using one eye to read without double vision) time for me to take a break and rest my eyes. I’ll catch up later guys, have a great day!

I must have missed something in previous posts but I was def not jabbing you, @TheZebraKing! Just trying to help a brother out as were you. We’re all learning here and having so many eyes on a grow has been invaluable to me now and in the past.

All of you rock, and I'm grateful. The coming together and different perspectives is what takes this place to a higher level

There's still lots of time, somebody shut the garden hose off on me- the RO reservoir is only half full.



The messed up part is my logic tells me: EC rise, PH rise = raise nutes.
But...burnt tips tells me, lower the nutes dumba$$
With the youngest having no burnt tips

 

[DonkeyDick]

The messed up part is my logic tells me: EC rise, PH rise = raise nutes.
But...burnt tips tells me, lower the nutes dumba$$

All Greek to me, I’m afraid. It feels a bit like you’ve jacked a Lamborghini. Hold on tight and try not to ride that rumble strip too hard
I like you’re attitude

if my mistakes help others to learn along the way, then it lessens my loss.

 

[TheZebraKing]

Ok so I’m just going to throw this out there then just in case no one comes along with any advice and you’d like to roll the dice.
CAUTION: Don’t take my advice. Haha!
But if what you guys are saying is true, then it sounds like you would feed these 4 plants just like you would a single plant DWC bucket. If that’s the case then I’d go with like 5-700ppm and 10 mL calmag for starts.

This is a great chart to go by Rex, I had to dig it up because I haven’t used it in so long but it really does work.

This chart will tell you exactly what is happening inside that bucket via water level, ppm, ph, and it tells how to move forward with your symptoms. Hopefully this will be as useful to you as it once was to me

 

[dick23rk]

Hey rexer. I don't have a lot of expertise in hydro yet, nor with MC. But I do have gh flora series experience and starting to get the hang of hydro with all the info I've soaked in over the years. I'm not sure if this chart has been shared in your thread yet but it may help figure out that ppm and ph rise.

33E5D78B-F7FE-4CA1-AFF1-039601DFD516.jpeg

• dick23rk
• Apr 19, 2021

If you decided to use and need a hand with running some GH let me know, or even go super simple and run the Lucas formula with some calmag for your RO water. With calimagic from GH, 1ml of caligic to 1 gallon of RO water is roughly 120ppm. That's how much I add with the nutes I am using, could need more with Lucas formula, that I'm not sure on.


Edit.. lol I see @TheZebraKing was digging up the same chart I was

 

[Rider509]

Great minds think alike! Thank you two for that chart! I’d forgotten about it but it got me through some head scratching moments in years past.

 

[Rexer]

Hey rexer. I don't have a lot of expertise in hydro yet, nor with MC. But I do have gh flora series experience and starting to get the hang of hydro with all the info I've soaked in over the years. I'm not sure if this chart has been shared in your thread yet but it may help figure out that ppm and ph rise.

33E5D78B-F7FE-4CA1-AFF1-039601DFD516.jpeg

• dick23rk
• Apr 19, 2021

If you decided to use and need a hand with running some GH let me know, or even go super simple and run the Lucas formula with some calmag for your RO water. With calimagic from GH, 1ml of caligic to 1 gallon of RO water is roughly 120ppm. That's how much I add with the nutes I am using, could need more with Lucas formula, that I'm not sure on.


Edit.. lol I see @TheZebraKing was digging up the same chart I was

Oh buddy- I very well may take you up in that- a starting point for a Lucas. Familiar territory

You know, I didn't realize that for the cal mag, that's gonna make a few things easier.

I love that chart, and I should have posted it on page one. But following it led me to those 900ppm MC numbers in an insane short amount of time.

Now if this was any other nute I wouldn't be as worried.

Ok so I’m just going to throw this out there then just in case no one comes along with any advice and you’d like to roll the dice.
CAUTION: Don’t take my advice. Haha!
But if what you guys are saying is true, then it sounds like you would feed these 4 plants just like you would a single plant DWC bucket. If that’s the case then I’d go with like 5-700ppm and 10 mL calmag for starts.

This is a great chart to go by Rex, I had to dig it up because I haven’t used it in so long but it really does work.

This chart will tell you exactly what is happening inside that bucket via water level, ppm, ph, and it tells how to move forward with your symptoms. Hopefully this will be as useful to you as it once was to me

That chart made my 1st ebb and flow make sense, I think WH showed it to me awhile ago. I really appreciate you taking the time, and also- don't be shy on chiming in with advice.

I followed that chart at the beginning, just forgot to include it (its actually saved as a favorite photo on my phone for quick references- and works on veggies ).


So, 500-700 PPM base in the res (100L), plus 10ML of cal mag.

So that's option # 1

Much appreciated

 

[DutchinAB]

Y’all beat me to it, I just dug that chart up as well!!

Rex, (and others) I am not a hydro guy, but I seem to recall reading in other hydro journals about the 500 and 700 scales? Are you sure everything is lined up to using one or the other at all times?

I may be way out in left field here, but just trying to help out, I hate to see a brother struggle.

 

[West Hippie]

@Rexer the chart did me no good with the new MC. Ph was starting at 6.2 and drop like a rock in three days of flower to 4.5 ph once I got past 4 grams was no control. That was DWC so I changed it every time we had acid rain. The flood and drain did the same with the mega light I just stuck with the 6.2 ph girls turned out just fine .
The MC batch before December 2019 would rise with the topping off . But it would start at 5.6 ph mixed in with 7.2 ro water .
I know the perlite dries out fast but your ph has had some big swings up . Right direction but too fast . One girl has leaves curling down and the other pointing up makes me think it’s the ph . I wanted to back up into your thread but it still stalls my iPhone and completely shuts it off . But you were hitting some high numbers on the ph .

 

[Rexer]

@Rexer the chart did me no good with the new MC. Ph was starting at 6.2 and drop like a rock in three days of flower to 4.5 ph once I got past 4 grams was no control. That was DWC so I changed it every time we had acid rain. The flood and drain did the same with the mega light I just stuck with the 6.2 ph girls turned out just fine .
The MC batch before December 2019 would rise with the topping off . But it would start at 5.6 ph mixed in with 7.2 ro water .
I know the perlite dries out fast but your ph has had some big swings up . Right direction but too fast . One girl has leaves curling down and the other pointing up makes me think it’s the ph . I wanted to back up into your thread but it still stalls my iPhone and completely shuts it off . But you were hitting some high numbers on the ph .

This morning was the highest (7.2)- I'll try uploading the photos differently in the future, should make things smoother hopefully?
Yeah...7.2, my jaw dropped. Then dropped more with how much ph down it was taking.

Roller-coaster of ups and downs- both pH and me resetting the res at different numbers. At one point earlier it was at 900PPM.

But I think dialing the light way way down has helped them. Now its just to get the right mix.

I think this run will be my last with Mega Crop- works for some- but I'm ahh not enjoying it this go around.
Oh and the runt is gone- perlite bucket removed

Y’all beat me to it, I just dug that chart up as well!!

Rex, (and others) I am not a hydro guy, but I seem to recall reading in other hydro journals about the 500 and 700 scales? Are you sure everything is lined up to using one or the other at all times?

I may be way out in left field here, but just trying to help out, I hate to see a brother struggle.

Hi DAB! I wish it were such an fix. I use the 500 scale. I should use EC, but started with the 500 scale and now it just is what makes sense for me.
Always appreciate your help and stopping by!

 

[dick23rk]

Oh buddy- I very well may take you up in that- a starting point for a Lucas. Familiar territory

You know, I didn't realize that for the cal mag, that's gonna make a few things easier.

I love that chart, and I should have posted it on page one. But following it led me to those 900ppm MC numbers in an insane short amount of time.

Now if this was any other nute I wouldn't be as worried.

Lucas itself is so simple, may not hurt togive it a try as a starting point for hydro, I thought about it as well.

That measurement on the cal mag is only for calimagic from general hydroponics. Other brands of calmag supplement will likely be different. At least it gives you an idea where to start.

By reading some of these other replies maybe it's the way the MC is reacting in the system along with the medium? I'm not sure, but those are some interesting facts pointed out.

That water/ph/tds chart is a wonderful thing to have on hand for majority of systems. Unfortunately it doesn't do me much good with my buffered nutrients so far as the ph always stays between 5.2 and 6.2, the buffers cannot be taken up by the plant.

 

[dick23rk]

Y’all beat me to it, I just dug that chart up as well!!

Rex, (and others) I am not a hydro guy, but I seem to recall reading in other hydro journals about the 500 and 700 scales? Are you sure everything is lined up to using one or the other at all times?

I may be way out in left field here, but just trying to help out, I hate to see a brother struggle.

I have to ask, cause I don't know or not cluing in lol
What is the 500 and 700 scales?