First time grower; Am I getting a phosphorus deficiency?

Hey,

Ok coolish, you're running at night there's nothing stopping you from adjusting your timer half hour a day to slide to 2000hrs on 0800 off. Thats what I do over here

Dutch Pro Multi Total is NOT a nutrient, it's living biology to improve the root zone, increase oxygen, increase the catatonic rate, alsorts. Simply follow instruction s on the bottle. I use 2ml per litre forst use, then weekely, 1ml per liter. A quart over there last time was avout $25 . . .£15 ish. Top value!

I've never read up on nutrient feeding ratios, if I'm using mineral fertilizers, I'll use my EC meter to tell my how much I'm feeding my girls. Generally ignore what the bottle says, half it and use it with a little more frequency, that's my rule of thumb



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Gotcha...

Small update and seeing an improvement already. 2 days since water and put two inch on, there's also a real nice vibrancy about the canopy its... umm, really fresh looking, lovely to look at.

Did a retest just there of the run off again, so two days after the PH6.5 drench and I'm reading 7.1 on the standing run off. I'll probably go in with next watering on 6.3

Tops of plant is dry again, tested down with the moister meter tops half is 2/4 while the bottom half still looks to be holding 3/4 wet. Think she'll be looking for some water tomorrow though.

-Dutch Pro Multi Total is in the mail

...another update.

I found the nutrient ratio mixes.

(NPK)
Grow is 4 / 3 / 6
Bloom is 2.0 / 7 / 4

Last water (2 days ago) was 8 litre mix. Mix was Grow x1 and Bloom x3. (10 / 24 / 18 )

Retested my ph meter today and found it .1 out. Which means my last water/mix went in at ph6.4 (last check of run off was ph7.1)

I've just check my run off today(run off it two days old) and something is going wrong. Run off is measuring at ph7.4 (214ppm)

My ph is still going up even though I'm reducing the ph going in, why would that happen?

Hi there,

Ok . . . . first of all. Your run off. Is it being collected in a clean saucer or tray? I've seen many a wrong reading from PH and EC meters because growers are allowing new run off to drop into old dried up run off left for days. The salts in that old run off, redissolve into the new run off, causing a PH swing and incorrect EC reading . . . . .

What soil are you using? Soils have buffers in them, sounds like your soil is buffering up by 0.5ph. . . . yes drop it down to about 6.2PH see what happens

Can we have some pics of the plants as a whole, but as close to them as you can get to get each one in ??



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What brand is your nutrient please?

I think it's probably time to drop the grow formula, unless it's specifically designed to work together. That's gonna be a lot of Nitrogen added each feeding during the latter weeks of life I reckon.

Does depend on the brand you're using though



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No its not a clean tray Semper, its the same tray and would have contained the dried up remnants from last run. My bad, I'll try and work out some way of getting a clean sample of run off.

Soil is the biobizz All-Mix the sales blub can be found here: http://www.biobizz.com/products/organic-substrates/all-mix

That soil is used in conjnction with its matching nutrients, which are also Biobizz. I work off this chart (I'm week6): http://www.u-grow.com/support/biobizz-growschedule.pdf

The amount of Grow used will never go higher that x1 the amount of Bloom will go higher again into x4 next week.

Had a little concern as it looked like I was taking a little bit of burn on some lower leave, thought I've have noticed the same symptoms now on a couple of the newer/newest leave. Its light brown spots that dry and end up cracking, making small holes in the leaves.

Might again be heat stress, temp is currently 30.6 and its lights off!

Looking on Amazon just now see if I can find a pump to act as an intake.

Lights on is 3.5 hours away, I have a macro lens so I can get as close as you like, anything in paticulare you want to see. Its only the one plant thought... its maybe why I'm so paranoid over it, there is no backups

Leaf tips scortching, can either be overfert. OR a lack of Potassium.
The little "rust spots" could be indicative of a calcium deficiency. What is your tap water like? Hard, soft?

At those temps off, ouch, must mean a little hike in temps for a few hours whn the light comes on before your ambient temps drop. Hotter plants slow down everything, you you will need to address the strength of your feed accordingly. The BioBizz schedue will only apply if EVERY other aspect of the grow is at >95% efficient. andf that's temps between 68 and 80c, up to 85 to 87 with extra Co2 being supplemented.

Yeah so piccies, macro me the signs on the leaves that are worrying you. Then some lower "shaded" fans, and upper canopy an leaves. And then the plant as a whole.

Ok cool, we might be getting to thebottom of your run off being outof whack with your salt build up in your catcher tray do you test your run off in the catcher itself then? Here's a little tip; when I'm scrogging (Plant attached to a net, can not be moved, so there fore catcher tray is in a permanent position) I use a turkey baster to suck the run off out into a clean container to measure

Slebber said:

No its not a clean tray Semper, its the same tray and would have contained the dried up remnants from last run. My bad, I'll try and work out some way of getting a clean sample of run off.

Soil is the biobizz All-Mix the market blur can be found here: http://www.biobizz.com/products/organic-substrates/all-mix

The Nutrient are also Biobizz and i work off this chart: http://www.u-grow.com/support/biobizz-growschedule.pdf

Had a little concern as it looked like I was taking a little bit of burn on some lower leave, thought I've have noticed the same symptoms now on a couple of the newer/newest leave. Its light brown spots that dry and end up cracking, making small holes in the leaves.

Might again be heat stress, temp is currently 30.6 and its lights off!

Looking on Amazon just now see if I can find a pump to act as an intake.

Lights on is 3.5 hours away, I have a macro lens so I can get as close as you like, anything in paticulare you want to see. Its only the one plant thought... its maybe why I'm so paranoid over it, there is no backups

Click to expand...

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is there a gap between the bottom of your container and the catcher tray??



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Ok so Biobizz schedule says keep on going with the grow; so that's that sorted

So if you are making up 8l each time to get about a quart of run off, because of the heat, I'd probably be making up in the same container, 6l of feed, then topping off to the 8l with 2l of fresh water, just to wriggle the strength down a little . . . . .

Considered stepping your lights to a 12/12 from 8pm?? 1/2 hour intervals every couple of days wont harm her

Is there budget for a stand alone AC unit??



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Taken from Bio Bizz's Website bro . . . .

The pH-and EC value of All·Mix®
Biobizz® products have not been produced with mineral salts but with organic elements. These organic elements are impossible to measure. However, the elements have a self-regulating system, which maintains the values at the correct level.



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I just a genius moment for heat... I need your thoughts on but first.

Soft water here. Straight from the tap its ph7.4 with 49ppm.

there is a little gap between the pot and the catch try, where a handful of clay balls have rolled free and under from the pots drainage, I reckon I'll be able to slip something small near one of the drain sections to get a fresh test.

I bought a beginners grow tent this is a good representation of the one I bought (http://www.amazon.co.uk/gp/product/B00CA4108U?&psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00)

So to get the heat down I thought I should look to maybe buy an intake and feed a tube out from the attic.

I understand that I should keep it negative air pressure so the intake should move less air than the extraction unit. Did a check and one of the smallest ones i could find was moving 227 m3/h. My exaction fan is moving 187 m3/h. My tent would be around 1.1m3 so I think 187 m3/h would be enough.

Anyway genius moment I remember I had spare10meters of 4inch foil tubing, yup I over bought.

Anyway I've attached it to one of the bottom intake holes popped it out the attic door and closed up all the other intake vent on the tent so *fingers crossed* I hope to see a big drop in temp if the extract process is only going to be pulling air now from the intake tube hanging out the door (which is about 24degrees)

With that said, now I'm tugging air from outside the attic. Is 187m3/h really enough or am I getting a nice gesture extraction unit here?

Feels like I might start having to think about getting better parts.

Right then . . . .

So, dah I hate ppm, what scale of ppm are you using, I use EC (it's universal, all other calcs are based on EC ) I guess we can take ~0.1EC as your tap water. Even before the piccies later on, I'd bet my last buck it is Calcium deficiency. By now the plant would have raped the medium of most of the nutrition, hence you feeding her, but I'm guessing a stand alone biobizz schedule in such soft water, won't quite have the Calcium nor praps the Magnesium in it to assist, so you might want to consider investing in an organic Cal/Mag supplement.

Ok so you have a 1m tent. I presume you have a Carbon Filter? How much ducting and corners between the fan and the filter? How much ducting and bends are there in the duxting the other side of the fan directing air out of the tent? This is important because I don't think you are getting enough airflow in there, here's why:

• A carbon filter will reduce your fans efficiency by up to 25%, dependent of the brand.
• If you are using flexible ducting, every meter can reduce the fans efficiency by 5%, especially when it's not pulled out as taught as possible.
• Every little corner will take away efficiency of the fan also, the bigger and sharper the bend, the less efficient the air flow.

Your 187 rate is probably been buffered down to somewhere around 150m3/h, I would ask you to consider a new fan at around the 350cfm for extraction, but be careful your Carbon Filter is rated correctly. And your current extractor fan as the new intake fan.

Yes the new idea for intake fresh air from outside the attic will help to a small degree, as long as the flexi ducting you are running that distance is insulated, ambient room temps can heat up air inside standard ducvting quite quickly, if it isn't passing through quick enough, which at about 150m3/h, it ain't!

Have a chew on that m man . . . . . . look forward to piccies in what . . . .a couple of hours ??

Slebber said:

I just a genius moment for heat... I need your thoughts on but first.



Soft water here in Scotland. Straight from the tap its ph7.4 with 49ppm.

there is a little gap between the pot and the catch try, where a handful of clay balls have rolled free and under from the pots drainage, I reckon I'll be able to slip something small near one of the drain sections to get a fresh test.

I bought a beginners grow tent this is a good representation of the one I bought (http://www.amazon.co.uk/gp/product/B00CA4108U?&psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00)

So to get the heat down I thought I should look to maybe buy an intake and feed a tube out from the attic.

I understand that I should keep it negative air pressure so the intake should move less air than the extraction unit. Did a check and one of the smallest ones i could find was moving 227 m3/h. My exaction fan is moving 187 m3/h. My tent would be around 1.1m3 so I think 187 m3/h would be enough.

Anyway genius moment I remember I had spare10meters of 4inch foil tubing, yup I over bought.

Anyway I've attached it to one of the bottom intake holes popped it out the attic door and closed up all the other intake vent on the tent so *fingers crossed* I hope to see a big drop in temp if the extract process is only going to be pulling air now from the intake tube hanging out the door (which is about 24degrees)

With that said, now I'm tugging air from outside the attic. Is 187m3/h really enough or am I getting a nice gesture extraction unit here?

Feels like I might start having to think about getting better parts.

Click to expand...

~_

I've pushed the time out a half hour (working towards that 8pm start) so will be lights on 2 hours from now.

I'll take some pics of the ducting and fan set-up as well, and you've hit the nail on the head again, the intake tube I've kicking around is not insulated. With the tent exterior temp sitting at 34.7 just now I think you're probably right on it not making a great deal of difference. Inside tent is sitting at 30.3

I'm aware that my kit is super basic, I tend to buy budget to begin with to see if I'm 'really' going to take it up but growing is just too much fun for me so I'd like to start picking up some decent parts.

Oh what fun eh???

So now you're hooked, I reckon your next investment is a larger extract fan, up to 500m3/h (300cfm), ands a suitably rated carbon filter (Quick plug; Phresh Filters, ime, have the greatest air flow.)
There's an air cooled enclosed reflector you could consider. A stand alone Air Con unit (though they drop humidity like a stone, lol.)

HEAT is your nemesis right now, so if you're gonnabe investing, go the air exchange/air cooling route first

Slebber said:

I've pushed the time out a half hour (working towards that 8pm start) so will be lights on 2 hours from now.

I'll take some pics of the ducting and fan set-up as well, and you've hit the nail on the head again, the intake tube I've kicking around is not insulated. With the tent exterior temp sitting at 34.7 just now I think you're probably right on it not making a great deal of difference. Inside tent is sitting at 30.3

I'm aware that my kit is super basic, I tend to buy budget to begin with to see if I'm 'really' going to take it up but growing is just too much fun for me so I'd like to start picking up some decent parts.

Click to expand...

~_

Looks like Phresh Filters is US based.

Heat exchange is priority for me, that said the issue is daytime (lights off) temps. When its lights on its much cooler and temps sit at a good range.

Still digging around for a decent extractor

Shit, so your night time temps can exceed your lights on temps???? NOT GOOD bro!!

Slebber said:

Looks like Phresh Filters is US based.

Heat exchange is priority for me, that said the issue is daytime (lights off) temps. When its lights on its much cooler and temps sit at a good range.

Still digging around for a decent extractor

Click to expand...

~_

Unexpected visitors, pics will be coming much later tonight 3+ hours from now.

Temp is currently 32.3, higher than night time

OK, just to be totally clear . . . . When lights are ON, the canopy and temp in the tent are higher than when lights are off, yes?

Slebber said:

Unexpected visitors, pics will be coming much later tonight 3+ hours from now.

Temp is currently 32.3, higher than night time

Click to expand...

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Pics in 10... and yes

As an example lights off 24 , get to 30, starts to cool dropping temp..... lights on backup to 32 until its actually cools outside

This is how I'm setup, had to remove other fan as it was in the frame at bottom right.