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Happy and healthy new year everybody, I finally got my hands on some proper (financially) scalable macro-nutritions available to the simple hobbyist: - Yara Tera Kristalon Orange : the core macro nutritional mix with NPK 6-12-36 including a full range micronutritients and trace elements. - Yara...

@BillFarthing Just checking if I understand the Cal-Mag Plus recipe: does this mean you dilute about half a kg of both calcium nitrate and magnesium sulfate together with 40 gram of iron chelate in 1 gallon of water and stir it up? Then add another 99 gallons of water to get the final solution...

So for my first attempt to grow Amnesia in RDWC. I am going from clone -veg- flower in effectively 50L per plant set up. Since it is Amnesia I am expecting to end up with pretty tall plants. What do you suggest for the size of the net pots? I have often read that it actually doesn't matter...

Pardon me if I am wrong, but I don't think this is correct. @Jahredi wants to connect through a T joint. That's a parallel connection. Parallel connections add up. If it would be in series it is a different story and I think that your answer would be right in that context. As an example take a...

@Mospeada Bit of a noob question but after transplanting your cuttings to you net pots. Do you transplant again to bigger net pots in a later stage? Or do you stick to one size after that? I hear most people saying that the bigger the better. It offers stability. I have big containers so I can...

@jemro86 and @smokedareefer thanks for the hints at the 500 ppm threshold.

Well it saves me like two orders of financial magnitudes if I am going to mix my own nutrition. And to be honest I like the DIY/bottom-up eningeering attitude to the problem. Buying by the gallon won't compete with that. It is interesting though that by your experience the feeding schedule of GH...

@Mospeada you read my mind or I am reading yours. Because this is actually what I was thinking and why I liked your set up in the first place. Why this problematic business of having just one container per plant. Hey this guy groups multiple plants per container. That looks smart. And...

@Mospeada What are your pipe diameters? I think I see many people using 1'' or even 1.5'' for pump-out-containers-in pipes and 3/4'' for containers-out-pump-in. I was thinking having everything 3/4'' but I just don't know. I am not a plumber and I have a hard time finding a good general...

Hey guys, Super interesting thread; @CF89 thanks for starting it. It is very relevant for me at the moment as I am designing the first version of my HVAC installation for my garden. I am not HVAC specialized and this is going to be my first set up so some of the discussion and terms were a bit...

As some of you may know, I am in the middle of engineering my first garden (RDWC style). Still in the design phase. I want/have to start setting it up in December and hopefully have it running in the same month. Yesterday I had dealt with some stressing questions surrounding nutritional needs in...

So I took a look at @BillFarthing's suggested link on open salts (link here) and focused specifically on GH flora series. Lets take "gro" as an example. This bottle requires these three parts Potassium Nitrate: 115,296.60 mg/l Magnesium Nitrate: 49,408.67 mg/l Mono Potassium Phosphate...

Many thanks people. I am really happy with the outcome of posting my disillusion with nutrition solutions here. For those who are interested, I am continuing this side track on finding el-cheapo solutions for commercial nutrition solutions on my own thread (here). And this actually seems to...

@UK420Show 15 pence per liter of nutrition solution.... That's a lot more doable. I was seriously considering pulling the plug on this project because of the nutrition cost. With electricity and rent already being pretty steep, adding in additional cost of the same magnitude would be a killer...

Thanks I'll let this stuff sink in and get back on the matter later.

Wow guys, Thanks for the quick answers (also on the original thread)! I didn't expect to get feedback so soon in the original thread. But much appreciated anyway. So what I understood from Milson's response on the original thread, is that I have to get into the salt business :) to make this...

Hey guys, I am currently in the middle of engineering a some what large RDWC system for a first growers adventure and I want to make grateful use of all of the existing information on the web on the matter. So I was calculating the upkeep and I got pretty concerned with the nutrition...

Mospeada, thanks for the reply. Maybe you (and/or somebody else reading this) can help me clarify an potentially expensive issue with regards to nutritions. Like I said before, I am modelling my own set up after yours. So I am thinking of two 1200 L (317 US G) RDWC installations for flowering...

What are the dimension of your veg and flower containers. I saw that you use 6 plant per container set up for vegging? Does that number of plants per container change during flowering. Also how do you adjust to the growth of the plants and their root system during vegging/flowering. E.g. do you...