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Yup, still propagating ST4 that I sprouted in 2002. I understand Blockhead is very close to ST#4. Donk looks very pretty, I'd like to have that one. I'm in the market for beans soon; would like to diversify a bit. I'd esp like to find some in Australia, getting beans across the int'l border is...

oh- one quick note for DarkCursade; your op will tolerate higher than 26C (up to abt 30C) without problems if you run CO2 @ 1500ppm. However, the setup for a proper CO2 application system is EFFING exxy, between the tank rental, refills and a proper controller- couple thou to set it up, anyway...

You're quite right, I did muff that. While it's a bit like asking a brain surgeon to carve a turkey, I consulted with a mate who is a Ph.D/medicine and she confirms your assertion: I guess the next question is 'what is a 'high concentration' of HOCl' as regards plants?' And a further...

Thanks for that, fatman. :) I had a rough idea of what road I was on, just not how many lanes it had. :D

Again, enzymes are proteins. Proteins are organic matter and H2O2 will decompose them on contact. If Hygrozyme is made with enzymes, H2O2 will neutralise it if used in a strength sufficient for killing pathogens. If you use so little H2O2 that there's not enough strength to fully break down all...

Enzymes are proteins. H2O2 will break them down on contact.

Thanks. :) How many plants are you running? You should have enough rez capacity to provide 5L per plant. Yep, you can expect a lot of evaporation at the temps you're talking about- got to get the temps down to 26C, 27 on the high and outside- but not for the sake of reducing evaporation. At...

I strongly disadvise the use of the 3% and 6% because of the sodium based stabilisers used. They could well make your problem worse. Moreover, the cost of 3% is prohibitive in a hydroponic application. If you used 3%, you'd need 17ml/litre. At about $5 for 3% in a 250ml bottle (common pharmacy...

Lower rez temps are indeed better since water above about 27C tends to lose its dissolved oxygen quickly, but regular treatment with H2O2 will solve both pathogen and oxygenation problems. H2O2 will also stop airstones from getting manky with accumulations of fungus.

Hygrozyme is a protein based enzymatic agent. It is not compatible with H2O2. H2O2 will break down Hygrozyme on contact, as it will do with any organic matter. H2O2 is also not compatible with 'organic' nutrients for the same reason. However, if you're using inorganic nutes, H2O2 is the...

You'll do fine without, but fatman's right, the most important data you need (sodium, calcium) are not included in this report, bearing in mind that sodium/salinity is a much bigger problem than calcium (which is a necessary micronute, but can at times be excessive). In a couple of decades of...

Yep, that would have put your actual pH at 5.5 if you were shooting for 5.8. You've found the cause of your stunted growth, for sure. I'd be cheesed, too. Cooltubes allow a 1000 to be placed as close as a 600 and they also dump all the lamp heat outside the room. Ballasts should always...

That's what I'd do. Heh, good to see you Geeb- & HNY to you too. :)

Yep, that consistency would be down to the ability to control pathogens at will with H2O2 (as well as introduce O2 in the rootmass) and the highly predictable (and measurable) nature of the available nutrient strength with inorganic nutes. A dark, dry, cool (10-23C) place. A household fridge...

If overwatering is a problem for you (and I think it may be), watering by weight will help sort it out. This is where being a skeptic and applying critical thinking is important... mainly because... ...it'll save you a lot of money! One very important concept: Preponderance isn't proof. A...

Better living through chemistry. ;) However, I have to advise against this method. Your nute meter tells you about the electrical conductivity (EC) of a solution based upon total dissolved salts/solids (TDS). It can't tell you how much N, P or K individually exist in the solution. If you...

Yep, it'll work. H2O2 will keep your nute solns sterile and clear. It will also introduce O2 into the rootmasses, killing pathogens there at the same time. no wux, mite. :)

Since you're in soil, I can't really help you that much. I can't have any way of knowing the pH of your soil nor its nutrient content. However many ml of nutes per litre is also meaningless to me. I have no idea what the actual ppm strength of that mix may be. Moreover, since you're using soil...

kewl. :) wow, you remember more than I do. Fuct if I know where I wrote that! I can tell you off the cuff that I water clones 2x daily at 12h intervals, takes 5-10 mins. I only look in on the flowering and vegging areas every 2-3 days, also 5-10 mins for routine checks, just to make sure...

First of all, since I don't run CO2, I'm not the expert on this topic- beyond the cursory note that with a lot of cubic feet, a combustion-based CO2 gen definitely is the way to go. With the numbers of people on RIU & other cannabis boards, you're very likely to find someone else who knows a lot...