aero/fog LED grow table

[LisaDouglas]

Hi Old Mac,

Just wondering if you experienced needing to use 50% less nutrients and a reduced photo-period for flowering as a result of using the Theorem LEDs.?


Thanks in advance for your reply.

[LisaDouglas]

Okay so I saw part of my answer after re-reading your posts. You are using less nutes because of needing to prevent gunking up the fogger. But no mention, that I can see, of a shorter photo-period. I apologize if I missed that.

[oldmac]

Hello LisaDouglas,

I actually use a 40% nutrient solution, due to using aero/fog. With fog it is very easy to over do nutrients since they are directly available to the roots without any buffer from a grow medium. Pond foggers crude up, but I've had no problems with the FrapaPlas fogger. Partly due to the Frapa's design, it has a much larger ultrasonic device, but also due to running RO water during the dark period. I have a built in "cleaning" cycle.

I've used the TI's for awhile doing container grows with Pro-Mix, and like most LED grow lights they do not dry out the soil as fast as a HID would. LED's automatically have less nutrient use because of this, so I ususally use a nutes first then water once, rather then the usual feeding I use for HPS which is nutes then water, water.

Hope that makes sence.

[oldmac]

Man im so curios i HAVE to ask, what kinda w/g are you avgn?

I'm only just setting the tray up right now so I don't have an answer for you. But I've built 2 smaller/cheaper trays for others that are both in use for awhile.

One is 2'x2' and is lit by 2-Procyon 100s, plus 2-T5HO 2' (48w total) and 1-25w red glass incandescent. They use 2-T5s (with 6500K bulbs) only for rooting the cuttings (24/0) for abt 10-14 days, then the Procyons are added for another week or so of veg (all at 24/0). Switched to 12/12 and after the first 2 weeks of flower the T5s are switched over to 2700K tubes. The total is abt 275 watts. This tray has an average of 1.1-1.2 grams/watt. BTW this system is not using any CO2 supplement, so it could go a little more with it.

Hope this helps with your curiosity.

[cannamanibus]

That is badass!! :thumbsup:

[oldmac]

Sorry to have taken so long to get back to you HMR, I seem to get to do one post or so when I get time for the boards. Just not enough time in the day. I've been real tired lately, between the two grows, patients and with Tonto.

Iâ??ve followed your fog brained posts at ICMag and at Fogponics. Iâ??ll keep reading at fogponics, but I think that the discussions at ICMag have been more in depthâ?¦.(so far). I do catch on rather slowly.
The ICMag stuff gets deeper into things cause there is a little more interest there, more players as it were. Fogponics is ok but there was/is not much going on there.

Okâ?¦..for a wild ass guess here, I would imagine that if you added 5 micron fog to your EZ cloner that you would need to fog more predominately and only occasionally splash to get what youâ??re trying to accomplish.
I do see the air roots form as they leave the bottom of the netpot and then disappear when the roots meet the solution below.
Exaclty correct, I would need to lean on the fog more and lighten up on the spraying. Good observation about the hair roots, they start just below "ground" level and are very delicate. You can wash them away with just a spray.

Well I just picked up a little â??one lungâ?� ultrasonic fogger to create a very compact fogger/cloner. Say eight 3.75 inch netpots or possibly just neoprene collars. (Havenâ??t decided yet) If I remember correctly the term at Fogponics is â??on rails or aerorailâ?� (4X4 or 6X6â?� vinyl posts). Your reply of aero/fog propagator makes me think. I could easily add an airstone on each rail and fog some and splash some. I suppose that would all depend on how long that they stayed in the cloner.
The output of a single head pond fogger is pretty limited but the real problem with pond foggers is the fog produced tends to sit on top of the water. The fog effect only goes a few inches up on it's own. This is the fog we need to get to that area where hair roots first grow, so some type of fan assist is necessary. I was thinking of using 2 single heads in the bottom of my EZ-120s, but then need to blow or suck the fog to where it's needed. At that point I think it is better to make the pond fogger seperate, such as a "bucket of fog" and pump it into the clonner.

For ease on my partâ?¦.letâ??s say that I built the cloner with the netpotsâ?¦â?¦used the 3.75â?� netpots with lava rockâ?¦..do you imagine that the lava rock would mitigate the effectiveness of the fog. Lava certainly doesnâ??t seem to stack anywhere near as tightly as hydroton.
Not sure about what effect lava rock would have, it certainly does have more space then hydrotron. I would be comfortable with a fogger like the Frapa to get fog in those spaces but am not sure that a pond fogger would.

I do appreciate the in depth explanation. I gives me something to look for in root development. For some of usâ?¦..you really have to â??spell it outâ?�.
I really should give credit to the authors of the textbooks and science papers I've read. And I will, some of the best info on roots I got from Clark, Lynn (2004) [I]Primary Root Structure and Developement[I], lecture notes. Heck even the Wiki entry for aeroponics mentions the wilt off problem when going toward aero from hydro! I'm just glad I can regurgitate some of the info I've come across, unfortunately at my age I need to read things at least twice to grasp it and then more is lost then remembered due to poor memory.

Almost forgot (see what I mean) to use an emoticon

[oldmac]

....maybe a little (or a lot) of root showing.

[Farmer Rich]

Hi Oldmac,

DAMN!

How long have those been in the system?

Peace,

Farmer Rich

[KenWood]

Why dont you show plants? That is a cool set-up.

[DreadedHermie]

Gazing on Oldmac's horde of mini-monsters is like gazing directly upon Zeus. Mere mortals burst into flame.

Thanks to my genetics I was only singed. :thumbsup:

I do love the smell of burning hair, but that's quite another story! :wtf: