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First Grow DWC 1000HPS/400MH Strain:007
- Thread starter radium-
- Start date
GanjaJedi
Member
Good job man, keep it up and with nutes less is often more. I know people who have grown bomb herbs with very little nutes so it isn't always necessary to go all gung ho. Also leaving a space beneath your netpot to the top of the dwc has nothing to do with aeroponics. Aeroponics is turning your nute solution into an mist to dust your roots with. Have fun!
radium-
Member
GanjaJedi: Yea basically the bubbles create a mist which spashes the roots while the roots are exposed to the air where as if you raise the water level above the bottom of the pot they are constantly in the water. Which is why this creates somewhat of an aeroponic atmosphere for them. But yes anyone who grows aeroponically uses misters anyhow plants are doing fine still I'll post pics tomorrow
radium-
Member
Hey guys heres a couple pics in the one below you can see some twisted curling that happened to an early set of leaves but all the new sets look nice and healthy
This one below is my best plant hopefully its a she! Anyway the leaves even look different from the others kinda weird since its all same strain but its 007 mystery strain so who knows?
Then theres this thing... I am thinking about saying goodbye to this mess it was the very first one i took out of the rockwool cube and had in a separate bubbler on its own but it never took off and I think it may have root rot, thinking about saying good bye if I dont see any improvement in next couple days..
Then this one here is nice and healthy the first set of fans have a bit of brown spotting on them but all new leaves look perfect.
This one below is my best plant hopefully its a she! Anyway the leaves even look different from the others kinda weird since its all same strain but its 007 mystery strain so who knows?
Then theres this thing... I am thinking about saying goodbye to this mess it was the very first one i took out of the rockwool cube and had in a separate bubbler on its own but it never took off and I think it may have root rot, thinking about saying good bye if I dont see any improvement in next couple days..
Then this one here is nice and healthy the first set of fans have a bit of brown spotting on them but all new leaves look perfect.
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howdy radium,
your ppm values are pretty much useless, unless you tell us what conversion factor your TDS meter is using, better yet to use EC instead of TDS tough, since its not ambiguous
An EC of 1.0 - 1.2 mS/cm is safe for vegging plants under strong lights in good conditions, anything less than that, and you'll get deficiencies.
How big is your res size? What nutes are you using? Water source? Is that the 400W MH running there?
your ppm values are pretty much useless, unless you tell us what conversion factor your TDS meter is using, better yet to use EC instead of TDS tough, since its not ambiguous
An EC of 1.0 - 1.2 mS/cm is safe for vegging plants under strong lights in good conditions, anything less than that, and you'll get deficiencies.
How big is your res size? What nutes are you using? Water source? Is that the 400W MH running there?
radium-
Member
mace_ecam: Not sure what you mean by conversion factor on my tds meter? My Res is 60Litres max but I have 50Litres in there. I am using RO water which comes out at 5ppm or less. I am using Diablo 3 Part Nutrients which are Grow 6-0-3, 4-0-12 micro, 0-4-5 bloom. I followed recepie on the bottle at 1/2 stength to get the 250 ppm I initally had but when I raised it to 450 I just added grow since it had the most nitrogen and couple other members recommended I just add the grow. Yes that is the 400 MH running too.
I'll explain briefly if you don't mind
A TDS meter is used to measure the ppm's of a solution, meaning there is no such thing as an PPM meter, they are called TDS meters.
How does a TDS meter measure the ppm's of a solution?
Isn't it really complicated to count each molecule, even for an electronic device? The truth is, TDS meters do not measure ppm's
they just pretend to... the only way to know the real ppm's of a solution would be an chemical analysis, a bit cumbersome for most of us.So where do to ppm numbers on my meter come from?
The answer is, TDS meters are nothing else than EC meters with an so called "conversion factor".
An EC meter measures the electrical conductivity (EC) of an solution, meaning how good the solution transports electricity (electrons), the opposite of electrical resistance.
Opposed to popular belief, pure water is a really bad conductor, meaning it doesn't transport electricity very well, almost none. The dissolved salts in the water will act as conductor!
The more salts in your water, the higher the conductivity of it-> the stronger the nutes, the higher the EC.
TDS meters take the EC, multiply it with a "magic number" (the conversion factor) and present you a reading in guessed ppms.
example with an EC of 1900 uS/cm and a conv. factor of .5:
1900 x .5 = 950ppm
"So" you might ask, "where is the problem with TDS meters?"
The problem is, there is more than one conversion factor, some use 0.5, others 0.7 and sometimes even 0.65... this leads to a situation, where the same nute strength (measured in EC) will produce different TDS values!!!
examples:
EC................0.5 ..............0.7
1200uS/cm....600ppm.........840ppm
1900uS/cm....950ppm.........1330ppm
funny, eh? Same nute strength, different ppm's... thats why i said your ppm's are useless without conv. factor, they are ambiguous.
Best is to use EC if your meter supports it, or just get used to write your conv. factor together with your ppm's.
I could be wrong there, but N isn't the only thing missing (spots can be a sign of Mg def).
If you use strong lights, you need stronger nutes, not just N, but everything, since your plant is growing faster (more lights) and therefore it needs more nutes to support that growth.
hope this helps,
mace
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radium-
Member
DAY 26
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Hey guys here are some more pics from today pH has slightly drifted to 6.1 ppm is close to 500, but once I top up ppm should drop a tad along with pH.
Here the best plant getting bigger and bushier by the minute it seems lol
These two here have some prob with their 3 leaf sets they have rust spots and are dying now by the looks of things but the new growth looks fine and the plants are filling out sideways now and the stems have tripled in thickness since I put them under the MH. Other than that they look great.
-------
Hey guys here are some more pics from today
pH has slightly drifted to 6.1 ppm is close to 500, but once I top up ppm should drop a tad along with pH.
Here the best plant getting bigger and bushier by the minute it seems lol
These two here have some prob with their 3 leaf sets they have rust spots and are dying now by the looks of things but the new growth looks fine and the plants are filling out sideways now and the stems have tripled in thickness since I put them under the MH. Other than that they look great.
radium-
Member
DAY 37
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Hey guys sorry I took so long for the update. Anyhow I switched to GH micro and bloom nutes. Following lucas formula 0-5-10 now ph is at 5.8 and ppm 610. I have cut clones from them and hoping for them to root soon and I am switch over to my 1000 HPS bulb soon and going 12/12 on these.
Anyhow pics aren't that great and light was on when pics were taken.
-------
Hey guys sorry I took so long for the update. Anyhow I switched to GH micro and bloom nutes. Following lucas formula 0-5-10 now ph is at 5.8 and ppm 610. I have cut clones from them and hoping for them to root soon and I am switch over to my 1000 HPS bulb soon and going 12/12 on these.
Anyhow pics aren't that great and light was on when pics were taken.
radium-
Member
Day 45
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Hey guys Its day 45 and the flowering has begun! I took a couple clones off them and trying to get them to root now. Its official the big one is a female!! The other two I can't really tell yet. Its only the third day of flowering anyhow. For nutes I went with the lucas 0-8-16 for flowering and the plants seem to be enjoying it. Starting PPM was around 980 and is now at 880 now after I added a few gallons to top it up last night. pH has always been kept between 5.7-6.0 and never once adjusted since water was first added. I'll post some new pics today.
-------
Hey guys Its day 45 and the flowering has begun! I took a couple clones off them and trying to get them to root now. Its official the big one is a female!! The other two I can't really tell yet. Its only the third day of flowering anyhow. For nutes I went with the lucas 0-8-16 for flowering and the plants seem to be enjoying it. Starting PPM was around 980 and is now at 880 now after I added a few gallons to top it up last night. pH has always been kept between 5.7-6.0 and never once adjusted since water was first added. I'll post some new pics today.
N
Neptune
dude,
in the future... veg your seedlings for 2 weeks minimum before adding them to growrocks. I have lost more seedlings in growrocks than anywhere else... those rocks snap stems.
Secondly, find your females and work with clones, they will flower faster, stay shorter, and be less hassle overall. Seeds are for finding mothers.
in the future... veg your seedlings for 2 weeks minimum before adding them to growrocks. I have lost more seedlings in growrocks than anywhere else... those rocks snap stems.
Secondly, find your females and work with clones, they will flower faster, stay shorter, and be less hassle overall. Seeds are for finding mothers.
