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6/9 - H3ad/Rez/Modified Lucas with t-5

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Purple_trees

New member
Hey all,

After a long time tinkering with variation of 6/9 for HID lighting, I came up with 6micro/9bloom/1gram epsom to work best for me.

My biggest issue is now in veg, under t-5's. I have tried numerous variations of the recipe, but always have a burn or deficiency.

BTW-I handwater my veg everyday, with adequate runoff, and let my ph swing from 5.5-6.0.

What do you all use? What works? Its killing me to see my girls like this :toohot:

Thanks IC!

-PT
 
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mg75

Member
your plants will use less nutrients under less intensive light. How about doing 1/4 strength and moving up...
Also, too much epsom in the beginning is no good.
 
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Purple_trees

New member
mg75-

Thanks for the response. I understand that they will use less nutrients under less intensive lighting.. I have tried 50% of 6/9/1gram ep and havent had good results. They are now all 6-14". At what rate of floranova bloom do you feed?

PT
 
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This2ShallPass

New member
Flushing the veg plants once every so often will help you manage your problem. I go through it too, but yours seems more severe. Half strength nutes don't burn my 3 inch tall seedlings much less 6-14 inch plants.

I feed Maxibloom and a pinch of Epsom, and 1000 ppms burns the veg plants but the flowering plants love it.

So I range my nute mixes from 750 to 900 ppms (that also covers the pH range nicely for me) and flush the veg plants when I notice them getting a little burned. I probably lose a little bud in the end but it keeps things rolling smoothly.

Side note - trying Veg+ Bloom as it seems to be the consensus one step product right now.
 
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Hydro-Soil

Active member
Veteran
Try 0-5-10, no epsom. (unless your strain is begging for it. :))

It's what lucas recommends for lower-intensity lighting like T5's and Fluoros. :D

Stay Safe! :blowbubbles:
 
gonzo`

gonzo`

Member
Is your coco clean? Unless you bought washed and buffered coco this is most likely the problem.

Also you say that the problem occurs only in veg, is that because you haven't flowered yet or they get over it after a while? I don't understand...

What is the EC of your tapwater.. or do you use RO?

Is it possible that despite watering daily the plants are drying out too fast causing salt to build up and therefore EC to rise?

Are you watering SLOWLY or do you just dump your water onto the surface? If you do the latter it may be the case that the water doesn't seep through the coco but just runs down the sides of the pot and out the bottom.. This causes you to think you got plenty of run off but the coco is actually dry and frying your roots...

Last thing... do you just have a few leaves unhealthy or is it the entire plant?
 
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Purple_trees

New member
This2ShallPass - Maybe I should try out the Veg+Bloom.. After a brief search so far good things being said about it. I like simple. I just didn't want to change from my micro and bloom regime that I have been on for the last 5 years( and it works amazingly for other hydro mediums as well as coco) Do you use 50% of 6/9 on your veggers while under t5?

Hydro-Soil - You are referring to Lucas' diluted 8/16 for t-5 ( which works perfect for rockwool, hydroton, etc) Unless that is working for some in coco, but I doubt it.

Gonzo - 1) The coco is clean.. 2) I have a 6/9 bloom run finishing right now(looking great) The issue is 6/9 is too strong for so little light, they tend to shake any burn once under HID. 3) My tap is near RO ~40ppm. 4) I am watering 1-2 times per day, no signs of drying out. 5) I water slowly, yes. 6) It tends to be majority of the plant, but I focus on new growth and it's condition..

Thanks for the help everyone... I just am lost with what regime everyone is actually using under t-5 for coco, feel free to disclose that.

-PT
 
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Hydro-Soil

Active member
Veteran
Purple_trees said:
Hydro-Soil - You are referring to Lucas' diluted 8/16 for t-5 ( which works perfect for rockwool, hydroton, etc) Unless that is working for some in coco, but I doubt it.
Click to expand...

Actually, yes I am... and yes, you should probably try it. Lots of folks run maxibloom in coco under CFL's and T5's... just at lower strength. Maxibloom is almost bang on 0,8,16 at 1tsp/7grams a gallon... less is closer to 0,5,10.

You probably won't even need the epsom, try it straight first.

Stay Safe! :blowbubbles:
 
Jbonez

Jbonez

Active member
Veteran
I run 4/6.5 m&b with .5g mg sulfate in veg under flouros... GH ph test kit to look like piss and water.. No issues in veg with this..


I am however having issues in Bloom with H3ads formula, but mainly N def as Ive seen tons of clawing.. Weird tho, even with clawing which is usually too much N, they are yellowing.. I used to run the lucas in coco, wonder if my ph is too low in the coco... I dont see how it could be too high...

Any advice HS?
 
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Hydro-Soil

Active member
Veteran
I ran Maxibloom in coco, same pH drops, adjusted to the same piss yellow you mentioned.

Nothing changes in flower unless the strain/pheno demands more epsom and then a couple feedings with a pinch of epsom will cure that. Never needed epsom all the way through flower with coco and mag hungry strains.

Advice? Stick with 8/16 on your mains and play around with testers until you find some variant of H3ad's mix that works better than Lucas? :) Lucas didn't seem broke in coco for me.

Stay Safe! :blowbubbles:
 
Jbonez

Jbonez

Active member
Veteran
Hydro-Soil said:
I ran Maxibloom in coco, same pH drops, adjusted to the same piss yellow you mentioned.

Nothing changes in flower unless the strain/pheno demands more epsom and then a couple feedings with a pinch of epsom will cure that. Never needed epsom all the way through flower with coco and mag hungry strains.

Advice? Stick with 8/16 on your mains and play around with testers until you find some variant of H3ad's mix that works better than Lucas? :) Lucas didn't seem broke in coco for me.

Stay Safe! :blowbubbles:
Click to expand...

Think ur right bro... Most of my gals in bloom are N def, never had that problem with lucas, but lucas in coco was causing me issues too... I think Ive got it about dialed, I just run 20+ strains and some of them are very picky about nutes... Hard to feed them all at once, tons of mixing nutes.. Ill figure it out.. thx
 
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Purple_trees

New member
Eastbay jpl- I tried out 4/6/1.4gr epsom as you suggested, I just havent been able to get them looking right.. It makes me really question everything else im doing. Any other tips you can lend? i.e. - container size, flushing frequency, kind of coco, how often you water with 4/6/1.3?

Im at my wits end.. coco is really kicking my ass - when thing go great the finished product is unmatched, but when it gets wonky, it is no fun.. Been contemplating switching to floranova grow, or trying this sample of Veg+Bloom.

:/
 
Arthritis_sucks

Arthritis_sucks

The Dude
Veteran
its gotta be another factor besides the nutes. What is ur waters ec without nutes? whats the ec of the run off? what kind of coco are you using? Pics to show issues? I veg under a 8 bulb 4ft t5 and run multiple strains on 6/9 with no issues besides the occasional ca/mg hog that requires a foliar fix.

 
Jbonez

Jbonez

Active member
Veteran
One thing you may or may not be doing is running enough solution through em, I like to see a shit load of run off, and actually I have a res with a pump and always run decent amount of plain ro water through em first, let drain and then hit with nutes.. Coco holds on to nutrients and when you understand how this works you will find the sweet spot.. I feed every other day, but I use RO water and I have full control over my nutes..

I run 20 something strains and feeding them differently is a pain in the ass, but 4/6/.5mg seems to be the one size fits all in my veg cab under flouros.. but remember, I am using t8's, someone using t5's may need to bump their nutes, all about reading the plants.. GSC has been burning no matter what I feed her, weirdly intolerant of nutes for some reason..
picture.php
 
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Purple_trees

New member
Arthritis_sucks - Tap is around 40ppm w/o nutes. I have been watering until the ppm of the runoff is same as going in the top. Coco is similar to canna - washed and sterilized, brand new coco's runoff is sub 50ppm.. My containers are 5"x5" pots(maybe half gallon) with ~12" plants in them. I have been watering at least once a day, sometimes more so EC doesnt rise as h20 evaporates. Do you feed 6/9 one day, then water the next, etc...?

Jbonez - So you run ph'd RO through before you put in your 4/6/.5 mix? And you do day1feed/ day2flush/ day3feed/ day4flush? I think the issue is I dont really know how coco works. It has been a difficult transition from pure hydro (hydroton, aero, dwc, rockwool) I have never grown in a medium that holds much nutes, no soil, just Lucas' 8/16 in hydro for the last 5+ years

P.s. I heard you mentioned you were having some clawing in bloom.. I did too until i set up an automated drip that would feed 6/9/1ep multiple times per day. Fixed up now and pulling a beautiful Skywalker OG run
 
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