Blog entries by Dusted

Posted in the blog: Citric acid test results
If something seems too good to be true, chances are there is a hidden problem. Citric acid seemed like such a good idea, but I forgot one important fact. Since it is an organic acid it is "readily biodegradable". I woke up this morning to find a microbial bloom in my reservoir. The pH had...
Posted in the blog: Citric instead of Phosphoric acid
When I first got into hydroponics (before internet) there was one place to buy chemicals, and one brand. Since I live in an area with hard water (180 mg/L) and pH 7.8, I needed a lot of pH down. After rapidly going through a $6 litre of pH down, I took some to the lab and found it to be a 5%...
So, I'm looking at my new ladies grow in the light baked rocks and remember that at this point in the grow my reservoir temperatures skyrocket. 450 W metal halide, 60 cm from rock surface for 18 hrs a day. Thermometer is dead but the temp is about 25 C. I immediately cover as much of the rock...
The terpenoid profile of Cannabis flowers are determined by environment and heredity, producing a characteristic psychoactive effect, to that strain. Can we modify the stone by changing the terpene content post cure? Essential oils from many different sources contain the same terpenes found...
Posted in the blog: Tin foil hat time
I saw you can buy a hat that has 12 layers of the antistatic film, used to ship electronics, fitted into a very nice leather hat. I am a scientist. I also have an olfactory system that allows me to identify organic molecules. Example: Lab tech walks up to me with an unknown chemical and asks...
Please note I am not referencing scientific research in my blogs, but going by memory and may give inaccurate information. Please research anything I say and dispute me if required. To those of you who are not aware of the potential of this to impact Cannabis, let me give you an introduction...
Posted in the blog: Is Cannabis a Legume
Only partially serious. I meant to include this with my previous diatribe on plant microbiome. Legumes, I seem to recall, are plants that incorporate nitrogen fixing bacteria into ryzomes in their root systems. Do other plants also incorporate bacterial/fungal synergistic organisms into...
Posted in the blog: Sterile hydroponic grow is a myth
I have seen several opinions on this site indicating that it is desirable to maintain a sterile hydroponic grow. A trained microbiologist may be able to achieve this in a laboratory setting with rigorous precautions. First you would have to kill any microbes, including spores, which generally...
Posted in the blog: Preparation
Just harvested, so have to get the rock media ready for the next grow. Removed the major root mat from the bottom of the grow pots and turned the rocks several times. Still large amounts of organic material left, so hit with 2mL/L enzyme, plus a couple of grams of bacterial spores (boo, no Great...
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