JMD's #2 Indoor grow (hydroponic)

In just one day the block is now green and one of the bigger leaves looks a bit weird. I would think the green block is due to algae, and my guess for the leaf would be phosphorus deficiency.

What do you think?

I think your right about the algae, look in to H2O2 (Hydrogen peroxide/brintoverilte) the normal 3% form the drug store is fine, half a cap full for a gallon of water (will also help with oxygen to your medium)


http://joemacho.hubpages.com/hub/Hydrogen-Peroxide-for-Plants

also in my Hempy bucket I use a lid to block most light from entering the medium (perlite)

about P defiency, I dunno, maybe Ca ?

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Slipon said:

I think your right about the algae, look in to H2O2 (Hydrogen peroxide/brintoverilte) the normal 3% form the drug store is fine, half a cap full for a gallon of water (will also help with oxygen to your medium)


http://joemacho.hubpages.com/hub/Hydrogen-Peroxide-for-Plants

also in my Hempy bucket I use a lid to block most light from entering the medium (perlite)

about P defiency, I dunno, maybe Ca ?

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I will try the H2O2. My plan was to cover the grodan block with panda film once the plant got high enough, which it isn't right now. Will see what solution I can come up with.

My guess of P deficiency was because it doesn't look like spots, as it seems to be for Ca. To me it looks very much like the progression stage of P deficiency on your last picture, wouldn't you say?

In either case.. what remedy would you suggest?

JMD said:

In just one day the block is now green and one of the bigger leaves looks a bit weird. I would think the green block is due to algae, and my guess for the leaf would be phosphorus deficiency.

What do you think?

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Not phosphorus. I had the same looking leaves. Calcium and Magnesium....looks the same as my 1st LED grow. My remedy: watered in lime and spread on the surface. Not the best for your situation...but you know the problem at least.

You can see the back leaf is particularly bad...


Few days later....leaf on the left.

Also how is your ventilation in there?

Chronikool said:

Not phosphorus. I had the same looking leaves. Calcium and Magnesium....looks the same as my 1st LED grow. My remedy: watered in lime and spread on the surface. Not the best for your situation...but you know the problem at least.
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You can see the back leaf is particularly bad...

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Few days later....leaf on the left.

Also how is your ventilation in there?

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I have some Epsom salt I can dissolve and add. For the calcium I don't have anything.. any suggestion on that?
EDIT: Now that I think of it.. regular table salt?

I have a rather big fan pulling air out of the cabinet, the temp is about 24ºC.

First get your ph/ppms and rez temps dialed in! once you fix your algae issues grower ^^, if the def keeps spreading after that THEN adjust accordingly

and for Ca you should go for some lime, in hydro I would for sure have a bottle of Ca/mg+ or some pure ca in liquid form, the Epsom salt is still good for magnesium sulfate

http://www.budgrow.dk/index.php?page=shop.product_details&flypage=flypage_images.tpl&product_id=515&category_id=3&option=com_virtuemart&Itemid=20

A few days since last update, so I better make one 3 days ago I added a bit of dissolved Epsom salt to the reservoir, and so far it seems like the newer leaves are doing fine. I wanted to add Ca/Mg one by one, to pin-point the issue - else it's impossible to know which one worked.

Here's how she looks today:




The leaf that looked bad a few days ago. Might trim it as it won't get much light anyway, and it seems to be beyond rescue.



Should I trim side shoots? It's the first time I'm dealing with an auto.

PSUAGRO. said:

First get your ph/ppms and rez temps dialed in! once you fix your algae issues grower ^^, if the def keeps spreading after that THEN adjust accordingly

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RO water is not an option, I simple don't have room for it and it's too expensive to buy in jugs (roughly 1-2 USD per liter). I want to make it work with tap water
H2O2 will be added in a few days, I just want to see the effect of the panda film first.

Slipon said:

and for Ca you should go for some lime, in hydro I would for sure have a bottle of Ca/mg+ or some pure ca in liquid form, the Epsom salt is still good for magnesium sulfate

http://www.budgrow.dk/index.php?page=shop.product_details&flypage=flypage_images.tpl&product_id=515&category_id=3&option=com_virtuemart&Itemid=20

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I will see if I can source the liquid Ca from a local plant nursery. Before that, I might step up the nutes - I'm running a fairly low concentration right now.

ok try that, and yes less is more, Im running a auto right now in a hempy set up and I burned it pretty easily (not used to auto`s or hempy) look ok but most big fan leaves have tip burn`s and Im running like 1/4 nuts, guess the auto and the use of LEDs don't demand the same level as a reg strain under a big HID

Slipon said:

ok try that, and yes less is more, Im running a auto right now in a hempy set up and I burned it pretty easily (not used to auto`s or hempy) look ok but most big fan leaves have tip burn`s and Im running like 1/4 nuts, guess the auto and the use of LEDs don't demand the same level as a reg strain under a big HID

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Already burns at 1/4th the concentration? That's low.. I'm running at about 1/10th right now. Will do slow increments then!

PetFlora said:

One of the many benefits of using Air Pots is, should a single plant have a problem it is much easier to address

Plus, hydroton is messy all the way around

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Yea, but that's not for hydroponic, is it?

I've only really used soil and and outdoor before, but I wanted to try hydroponic - don't know how it is if I don't try it
Let's see how it progresses. Tips and comments are still very welcome and much appreciated.

in short, there are soil grow`s and then there is soilless grow`s that require pretty much the same treatment as hydro, even pure coco is considered semi hydro

who says they're not? Now on my 3rd grow using them

JMD said:

Yea, but that's not for hydroponic, is it?

I've only really used soil and and outdoor before, but I wanted to try hydroponic - don't know how it is if I don't try it
Let's see how it progresses. Tips and comments are still very welcome and much appreciated.

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PetFlora said:

Slipon, apparently, old habits die hard.

30w of CFL? WTF?

LEDs all the way, 3 Cree; two NW + one WW

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A bit off-topic, but why do you prefer 2xNW and 1xWW?

From my (admittedly limited) experience I thought 2ww x 1cw or nw would be the best setup, since ww provide more ~630nm for flowering.

NW offers more Blue output for veg. For flower you can go 100% WW. I believe PF slowly changes out NW bulbs for WW as his plants progress into flower.

Mostly right. I keep 1-2 NW A19s. This grow I went directly to 4 WW tubes, instead of starting with 1 NW + 3 WW. It just depends on bushiness. Plants weren't stretching as I wanted, so I went right to 4 WWs, but plants are Indica dom at least in veg

Bumping Spheda said:

NW offers more Blue output for veg. For flower you can go 100% WW. I believe PF slowly changes out NW bulbs for WW as his plants progress into flower.

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Ah right, I thought it was a permanent setup. So... Why Netural White instead of Cool White? Is CW shit?

She's now 20cm across and looking much better after getting a bit of MgSO4
Liquid calcium ordered (22% solution).

ak84 said:

Ah right, I thought it was a permanent setup. So... Why Netural White instead of Cool White? Is CW shit?

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I think for the most part it is interpretation of the same thing....neutral white could be 4000-5500k.....Cool white could be 5000-6500k....pretty broad areas/temperatures...

JMD said:

She's now 20cm across and looking much better after getting a bit of MgSO4
Liquid calcium ordered (22% solution).

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Thats more like it huh!