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So, I have read in prior threads that there were issues with HPA and cloning. That better results were had with LPA, for cloning at least. Are you guys using HPA for cloning, and if so, how well does it perform in comparison to LPA? I figure that there would be a problem with embolism and...

Nice PetFlora! What size pump powers that bad boy? You know, I think you need few more nozzles, say about a dozen more, maybe two, just sprinkle them all over the bucket...well, you know that's how I'd do it. :) I'd give those plants a nutrient enema! (...and there's plenty more where that...

I think that comes out to about 50 net pots, sans crates, for $80. The only bummer is I don't grow in soil. :) Oh, wait - 25, for two 1x3 strips, I think...

The trampoline fabric was delivered today. Now that it has arrived, I can say that it would make a good fabric pot, if the maker has the ability to weld/melt the pieces together. I got 4 yards x 156" for $80 delivered. Let's just say you could make a lot of fabric pots for the money. They...

Hey Pet! I wish I could lower the timing to 3/3, but it takes about 3 seconds for the low pressure pump to get the water to the sprayers. When it starts spraying it's more like raindrops instead of a spray. The pump moves enough water, but it has a low pressure. Maybe in the future I'll get...

I guess it's time for a progress update. So, the plants have been looking a little yellow and the ppm's have been dropping daily. Even with add backs, the nutrients are being consumed quickly. I needed to increase the concentration and change the ratios to accommodate the nitrogen and...

I have a plan to regulate the RZC temperature. It is a double fail-safe system. It should keep the temperatures low and isolate the RZC. Using the aforementioned configuration, the top half of the chamber will have the breathable PP fabric. The whole top of the system, spanning the 10'x10'...

H2O2 will break down to O2 and water, but it is also cytotoxic and a good reducing agent, so it can only be applied in low concentrations (way <3%). As it provides e- it will evolve O2, but it pretty much destroys everything in it's vicinity. Plants can tolerate it to an extent, but I wouldn't...

Hi HydroLynx, Good stuff, I hear you about the difficulties getting O2 to massive root balls, it would be more difficult to permeate and supply optimal levels if the only available O2 was limited to what was dissolved in the water. There is another factor when thinking about O2 saturation and...

I have thought about this, and since I am still in the design stage of the root zone chamber (RZC), I might integrate root mats and the polypropylene (PP) walls. The PP walls would be half walls, as the 4'x8' tray walls have a 7" wall height already. The bottom of the tray would be covered...

Hi Jonsnow, Totally cool, anything aero that you post helps me too. I'm always learning, and I figure if it adds to the knowledge, it's not hijacking at all. Thanks for the input and interest!

Okay, now you have me intrigued. I don't know where to start, ummm...doesn't air and mist move right through it, how does it drain, what about insulation...more questions,,,more questions. Don't worry about answering, that sounds cool though. I'm sure there are awesome benefits to that...

@ Atomizer, I was reading an older aero thread, and in it you mentioned root mats. What are your thoughts on using these to keep the roots off of the bottom? I only ask now because it was such an older thread that you may have a different view on them today.

Is your time "off" inversely proportional to the biomass? If so, do you have to manually decrease the off time? Sorry for peppering you with so many questions. Thanks for all the info. :)

Here is an update on the OG Kush seedlings that I have in LPA. The Air Layers are looking good. They became a little twisted from the procedure and weight of the water/Rapid Rooters, but they are still green and growing. I figure about another 11 days before the roots emerge. I'll have to...

I see Atomizer, you don't want to increase the number of nozzles because it would provide too much water at one time; cause accumulation and increased particle size. Instead, increase the frequency of dispensations, and provide only ample water for the demands. In order to do that though, It...

What about just building in a few more nozzles that actuate when the lights come on? Maybe couple a timer and solenoids to the lamp power line to make the additional nozzles fire. The main nozzles would be a constant, but the auxiliary nozzles kick in when the lights go on.

Hi Kytaez, I had to build a 220V/40A double-pole relay to control my HPS lights, when I was using them. I placed a standard 120v / 24hr. timer onto the 120V relay power cord, and it safely turned the lights 12h on/ 12h off. I figure you could put one system on that, to turn on when the lights...

Creating nutrient profiles has intrinsic limitations and fall backs. Nutrient ratios need to be balanced. This enables a plant to absorb and incorporate elemental necessities. Because the ratios need to be balanced, increased concentrations of salts are required to meet plant nutrition...

The ppm's for the nutrients are mg/L (if H2O density = 1) or mg/Kg. The EC estimates can be converted to TDS (x500) or ppm's (x700). Personally, I make a hot profile and dilute to my required EC/ppm. hth.