yoyoMaster

I've been around, creeping and reading the forums for a long time now. I have decided to grow a baby girl and I believe I have a problem, which will be explained further down. This is ONE plant; a small grow, with intended reasons.
This is actually my second grow, 3 years ago my now "ex" poured bleach into the pot...doh!

Here are the details:

She is 21 days old from sprout. Not sure of the strain as it's bagseed, but was from a really good head high...from what i can remember

Soil
45% potting soil
40% perlite
10% worm castings
5% vermiculite


100w HPS + 42w CFL - I will be adding some more CFL's

22"W x 22"L x 54"H - It's a stealth grow that's in a stereo cabinet, which will be completed soon (minor tune-ups). I was impressed on the progress and the look of it...purdy cool. I'll post pics soon.

Watering: Mostly water, kept out for a day, then run through a Brita filter. I water when the pot is light, from the bottom tray.

Nutes: I have given it ONCE a water soluble 20-20-20 fert. at half the strength

Low Stress Training

I am having a problem I noticed two days ago, spots. Yellowish, brown spots are appearing.

Here are a few mug shots (Not sure how to type between the pics, but the 1st is a top view, 2nd is of the LST and 3rd of the yellow spots)

Also, I have since added a second 2 gallon pot under this one, by cutting away the bottom (Pics taken today and new pot purchased later today because I saw some exposed roots) I hops that's all, thanks in advance:

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ChiefBongWater

Is that the only leaf the spots are on? Low manganese maybe?

Im just going by the nutrient deficiency chart stickied in the nursery. Ide wait for a more experienced grower to get their opinion. Looks good though... ide mix the perlite in with the soil rather than laying on the surface.

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yoyoMaster

CBW, it's on 4-5 leaves, with the one pictured being the worst.

I was thinking nute. deficiency, but isn't it too early? She's 21 days old and was repotted at 14 days. I also added a pot today (by cutting away the bottom) to the one pictured since some roots were popping out. (about 1.5 gallons of soil mix was added) Might this have been the problem? A tight confined space?

I do have the perlite mixed in, thanks. The topping was just added for reflective purposes.

ALSO:
24hr light cycle

75-80 degrees

Vented, with a small rotating van

Mylar on walls, top to bottom.

HPS is about 9" away, CFL is about 3-4" away

Thanks again,

yyM

Jenna_Grows

looks like the beginnings of a mg or calcuim def...I would be tempted to add a bit of epsom on the next feed if it looks like its getting worse. Usually the tips begin to bend with a mg def... but either way..epsom is a quick cure..

msicidron

wait so instead of transplanting you cut the bottom off and put that bottomless planter in a bigger pot? hmm

if i were you i'd put it in a nice big pot the right way that it can grow to full size in.

and mix in the perlite hehe

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farmergiles

What Jenna said. A bit of epsom salts will do no harm around now. Magnesium helps the plant move other nutrients around.

Another possible culprit is drops of water focusing the light from the HPS- careful when watering- you can wipe away any water on the leaves with a cloth or something.

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farmergiles

This is a legit way of repotting.

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Praise Jah

my plants had that spotting problem but it went away seemingly on its own

yoyoMaster

Thanks guys/gals for the responses. I'm going to monitor her closely and give her a small amount of Epsom. After that, plain water in 1-2 days. If all goes well I will then make a nice, yummy worm castings tea.

Aside from that, what do you folks think of the growth/spacing? She initially stretched, but I'm using that to my advantage, as far as LST goes.


Thanks again,

yyM

yoyoMaster

Quick update:
One of the smaller, lower leave has become very dry (crumbly tip). I don't see any of the spots becoming larger on any other leaf.
I did a soil ph test and found it to be extremely low (4.5). Going to figure out how to raise it. There seems to be a thousand methods in doing so. Looking for a natural way, maybe adding dolomite.

Thanks to all,

yyM

yoyoMaster

Update:

30 days old.
I've given "her" a nice feeding of epsom salt, as suggested, which looks as if she really liked it...no new spots, curling is now all but gone.
I gave her her first feeding of worm tea today, will see how she enjoys/disapproves of it.

I did notice that the heat was getting very high after I completely sealed the grow cab. This has been conquered by a new exhuast fan along with an expanded, passive inlet.

Below are some pics from today. The first three are of her "posing" for the camera, she is such a camera hog lol. The last one is of the living quarters (Yep, that's my cat's ear in the bottom of the last pic. He and his sister are enjoying this as much as I am).

Thanks for stopping by,

yyM

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yoyoMaster

I am starting to get some new spots on the plant, but she is still growing...and growing quite fast I might add.

Here are two pics.

One of the leaves with the new spots (there are a few on other leaves, but this is the worst one by far)

The second is to show her overall growth.

Thanks again,

yyM

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Jenna_Grows

thinking out loud...

could be phosphorus...(what's the meristem look like? is it purple? What is the strain? some have purple meristems regardless but its strain dependent..somebody correct me if I'm off.)

could be calcium too I suppose...I found the thing with epsom feeds, once I started, they wanted to continue).

Have your introduced more nutes other than the epsom feed (1?), the tea and one 20-20-20 feed 1/2 strength?

Big help hey? more questions than answers..lol

yoyoMaster

I have come to the conclusion that I need to tackle my ph issue before I can go any further. This can be locking out nutes within the soil.
Here's what I have done: flushed the plant with a 7.8 ph water...no nutes. The plant's ph has gradually gone from 4.5 to 5.5
I plan on adding some dolomite (this should have been purchased weeks ago) and hope this will be the end of this goofy mess. The dolomite was in my hand the last time I was in the store, I regret not getting it. Doh!

On to Jenna:
The meristem looks nice and green. Other than the few spots, there is no discoloration, at all, on the plant. Not sure of the strain, though, as it was from a bagseed.

No more nutes have been introduced as I'm really trying to keep it simple. I failed to mention that, when originally mixing the soil, I also added Bone Meal, Blood Meal, Muriate of Potash (K) and a pinch of epsom. There was supposed to be dolomite in the mix, but it must have been a trace amount.

Let's keep our fingers crossed about this dolomite and ph issue...I really hope it's that simple, but we shall see.

Thanks for brainstorming with me!

Here are a few more pics. She just continues to grow and at such a fast pace.
With the LST she is 14" long, but only 8.5" tall. In this set of pics, she is growing from right to left.

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Jenna_Grows

sounds like you have things well in hand.

I love keeping it simple.... check out alfalfa for nitrogen..the ladies love it...just don't let it ferment for long... the smell will choke ya!

beautiful bushy plants.. nice work

yoyoMaster

Thanks for the compliment, she sure is bushy, btw it's only one plant. There are about 11 "colas" or tops that I am managing. It's a task getting them to be near the same height and maintaining an even canopy, but this type of task I love.

I'm going to put her into flowering soon, maybe a week or so, depending on her growth. I started to change the light cycle and gave her 1 hr off yesterday, 2 hrs off today and so on, until about 6 hrs off. From there I'll see if it's time to go completely 12/12.


Thanks again,

yyM

farmergiles

I wonder what is causing the pH to drop? I once had a similar problem caused by the soil I was using having too much bark and woodchips in- as they rotted down the pH plummetted.
Your soil mix sounds good- although you've got quite a lot of things going on there.

Go gently with the dolomitic lime, don't want to swing the pH from one end of the scale to the other .

Looks nice an healthy in any case.

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stoneric

I'd go 12/12 now.

yoyoMaster

The thing is that I never tested the soil prior to using it. Shame on me. Plus, I initially had a heat problem and contribute the ph spike to the rise in temperature (from what I've read).

As far as dolomite is concerned, thanks for the tip. I will definitely go slowly. My main purpose is to have the dolomite maintain the ph. So I'll maybe let the dolomite sit in the water for a while, test the ph and feed it. Also making sure that I put some in the soil as well.

All this time I've been calling her "she" eventhough it was from a bagseed. Wishfull thinking, I know. Well guess what, it turns out that IT'S A GIRL! I will post some pics later to confirm this...boy I hope I am looking at her private parts properly (say that five times fast)

Stoneric, I've be waiting to flower until she reaches a certain height, which is 10", including the LST. She is currently at 8.5"H (14" long). I also wanted to introduce the night period slowly. My target date of 12/12 is this Wednesday, I should be able to make it. By the looks of her I would say it's a indica/sativa mix, so hopefully it won't grow too tall. I case it does, I'll have at least 24" of height to play with.

yyM

Jenna_Grows

congrats!