3 days on jack's 5-12-26 and the plants are loving it! Bye bye General Hydroponics forever

Arkos said:
Please guys this thread is providing great info for people new to Jack's and even mega crop for that matter, let's keep the info coming instead of having this thread locked.
:peace: :eyesmoke:
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i put him/her on ignore. 60 posts in 11 years? =sock account.

now back to your regularly scheduled programming...
 
rkymtnman said:
if i had the space, LED + CMH would be in my room.
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Thanks for the heads up man.

Question, how does that work with leaf surface temp's ? Does the cmh heat up the leafs sufficiently so you don't need to run you room hot af like with Led only?

If that's the case this could possibly save me a small fortune, 2000w heater is killing my light bill :lol:
 
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Arkos said:
How does that work with leaf temps ? The cmh heat up the leafs so you don't need to run you room hot af like with Led only?

This could possibly save me a small fortune if that's the case, 2000w heater is killing my light bill :lol:
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The lamp provides heat and lumens. The biggest downfall with LED's is they simply do not provide heat to the grow room as other conventional forms of lighting have traditionally provided. I have electric oil filled heaters in every room / tent I have LED's running to keep temps in the ideal range. So how efficient are LED's if we have to run heaters combined with the power draw of the light fixtures themselves? It's an interesting question to ask one's self. I still love my LED's, because I don't have to invest in an elaborate HVAC system to dump the heat from air cooled HID hoods. The costs for high quality reliable inline fans and glass sealed air cooled hoods raises the costs of light upgrades substantially. Not to mention cutting holes in the side of your house for a 6" or 8" grill to dump the heat outside. Not a lot of people are interested in doing that. I have 3 holes in the side of my house. It ain't no fun cutting those fucking things brother :) Hanging an LED and tossing an electric heater in the grow area is exponentially easier.
 
Arkos said:
Thanks for the heads up man.

Question, how does that work with leaf surface temp's ? Does the cmh heat up the leafs sufficiently so you don't need to run you room hot af like with Led only?

If that's the case this could possibly save me a small fortune, 2000w heater is killing my light bill :lol:
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they definitely throw off some heat. nothing like a hps or mh though. and they have IR (pretty sure?) and UV so you get those as a bonus too.

i would definitely try one to save on heating costs. i'd rather have more light to give me heat than a heater.
 
jonnynobody said:
I have 3 holes in the side of my house. It ain't no fun cutting those fucking things brother
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Heheh I hear yeah man, that would definitely raise some eyebrows here.

I'm using my basement so intake and extraction is through the windows and there's more rooms to use so there are options but little money atm, damn virus restrictions.

rkymtnman said:
they definitely throw off some heat. nothing like a hps or mh though. and they have IR (pretty sure?) and UV so you get those as a bonus too.

i would definitely try one to save on heating costs. i'd rather have more light to give me heat than a heater.
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Yeah thanks man, I think I'll get 2 and it'll pay for itself in 2 months with the lowered light bill.
 
Arkos said:
Heheh I hear yeah man, that would definitely raise some eyebrows here.

I'm using my basement so intake and extraction is through the windows and there's more rooms to use so there are options but little money atm, damn virus restrictions.


Yeah thanks man, I think I'll get 2 and it'll pay for itself in 2 months with the lowered light bill.
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just make sure you get the real deal philips agro bulb. and vertically mounted in a reflector.
 
HGCC said:
What fulvic product are you using? Going to be adding some in this year and trying to decide which one to go with.
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I'm using Mr Fulvic right now. I'm not convinced that it's the best necessarily, but it does have 4.5% Fulvic Acid.

www.mrfulvic.com

Organic Fulvic Acid Complex for Growers

Mr. Fulvic is an organic amendment for plant growth that increases nutrient absorption and creates healthier and stronger plants.
www.mrfulvic.com www.mrfulvic.com

Screenshot - 2021-03-28T122624.504.png
 
Arkos said:
Thanks for the heads up man.

Question, how does that work with leaf surface temp's ? Does the cmh heat up the leafs sufficiently so you don't need to run you room hot af like with Led only?

If that's the case this could possibly save me a small fortune, 2000w heater is killing my light bill :lol:
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Yes, the IR from the cmh does help to heat up the leaf surface temp, so the room doesn't need to be quite as hot, as you're suggesting. That's exactly the reason I went this route. It doesn't heat the surface up quite as much as a pure HID grow as you would imagine, because you are mixing light sources, so it's approx a 50% reduction in IR this way compared to a 600w HPS. With HPS I alwasy found myself having to cool the room, then with LED I have to get the room warmer. Well a mix kinda gives me the best of both worlds, plus both my LERDs and CHM are dimmable, so I can adjust them accordingly. Truth is I don't even need the light from the cmh in my room, as I have plenty of power at full from my LEDs alone. Right now, I'm running my LEDs at half strength, which is also increasing their efficiency and life span.
 
All the branch tying. This is how you maximize yield in a tight space with wall to wall plants. But oh....the horror. The horror...
I feel like the flower room is like a vortex into an alternate universe in which time accelerates. I sometimes walk out of there and see the clock. I just go no fucking way man. It can't be that late. I'm now convinced my flower room literally eats time at a faster rate :)

This madness is enough to make anyone nauseous, but look at the photo of the canopy above this shit show and you can see the result it produces :)

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In case you don't care for weighing out dry fertilizer when using jack's 3-2-1 you can instead make concentrated stock solutions out of jack's 5-12-26 and calcium nitrate. Then you can add each to your reservoir by ppm using a simple tds meter. Nice and easy. A lot of 3-2-1 growers omit the magnesium sulfate, because jack's is loaded with it at 6.3%. Always maintain the J.R. Peters recommended ratio of jack's 5-12-26 to calcium nitrate at 1/.67 jack's/calcium nitrate and you won't have any issues.

600 ppm is 360 ppm jacks and 240 ppm calcium nitrate 240/360=.67

750 ppm is 450 ppm jacks and 300 ppm calcium nitrate 300/450=.67

900 ppm is 540 ppm jacks and 360 ppm calcium nitrate 540/360=.67

Jack's 5-12-26 stock solution recipe:

Dissolve 880 grams Jack's 5-12-26 in 1 gallon of RO water in a milk jug. Use hot water if possible. Cold RO works fine. It just takes a bit longer to fully dissolve. Some occasional shaking over a day or so and the stock solution will fully dissolve. You now have a concentrated stable stock solution of Jack's 5-12-26.

Calcium nitrate stock solution recipe:

Dissolve 580 grams calcium nitrate in 1 gallon RO water in a ilk jug. Use hot water. The calcium nitrate mixes into solution fairly quickly. You now have a concentrated stock solution of calcium nitrate.

I recommend filling smaller more convenient containers with your stock solution using a funnel. I love the little 16 oz plastic squeeze bottles with the plastic click lids. They're very handy and convenient for adding a little stock solution to the reservoir at a time.

Enjoy!
 
Just jack'n it at week 5 of flower 1.65 EC. I snapped these pics about 5 minutes before lights on. I did add floralicous plus on the last 2 feedings. I'm uncertain if I will continue. Also have some Raw brand humic acid on hand. Might incorporate that when the floralicious runs out. Still on the fence though. Seems like it may not be a necessary component in hydroponic applications. I'll have to read up a bit.

I called JR Peters today to ask whether I could use calcium nitrate with the jack's professional 10-30-20 blossom booster. The rep politely insisted in their studies done with cannabis the plant suffers no ill effects from the lack of calcium for 2 weeks that peters recommends the blossom booster with epsom salt while omitting the 5-12-26 and calcium nitrate. I'll give it a whirl on my next flower cycle and see what happens. I'm sure Peters wouldn't steer me wrong.

Blue dream front left. 2 maui waui's behind her. Monster jager on the right side towering over the others:
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Blue dream
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Horrible producer moonshine haze #1 x ghost train haze #1 that I'm cycling out. Almost threw both out, but I justified keeping them because they should produce at least 6-8 ounces combined and if I don't want to smoke it I'll use it for my hash oil. See how much smaller the flower structure is than the other strains? You just can't burn down all the electricity it takes to run a flower room for a strain like ghost train that just will not produce like the others:
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Blue dream in the front. Maui in the rear.
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Jager towering over all. Goddam she is an absolute monster and a pleasure to have in the garden. Critical mass in front of her. Much shorter and thicker colas. Jager is a heavier producer by about 2x though:
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My only issue with the different formulas is the only way I can see using them is with clones.

Even seeds from the same mother can have very different schedules.

This is for me and how I grow mostly. People with more space and different set ups don't have my 1 res 1 tent issue.
 
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