Jump to content


  • Content count

  • Joined

  • Last visited

Community Reputation

14 Good

About Jack434

  • Rank

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. Hey Shadey, I seriously doubt that any dirt farmer would have any sort of interest in any oxygen generator. Just no use for it, free or even cheap. Since hydroponic DWC and RDWC do have problems with low dissolved oxygen inviting sick roots, root rot, fungal infestations and other messy issues. DO is of some interest to the hydroponic growers. That is only it the growers that ever mention air pumps, oxygen/DO and the race to cure the root rot. They are always talking about root rot and how to cure it. Of course there are no low DO issues or worries for dirt farmers so a free oxygen generator used to improve reservoir DO is meaningless. It is definitely much easier and a lot cheaper to grow in dirt outdoors, but I guess most hobby hydroponic growers have a small closet in and apartment of house for a plant or 2. Stealth and secrecy is usually high priority for those growers and thieves are always watching, listening, smelling, surveilling and looking for any opportunity to find and snatch an easy crop. Regarding the COPD you mentioned, doing a simple breathing test at home is easy, quick, simple to do and free… Hold a lighted candle at arms-length away, if you can blow out the flame with 1 hard breath, your good. But if you cannot blow the flame out in 1 hard breathe, that is a symptom of obstructive lung disease. You might consider asking your doctor to do a pulmonary function screen test on you in his office. It’s easy to take a deep breathe and get air into the lungs upon inspiration with emphysema, but expiration is very difficult to get air out of the lungs with emphysema… i.e. difficulty blowing out a lit candle at arms-length. Chronic bronchitis is often diagnosed with these symptoms: Chronic cough and spit or sputum production for 2 years commonly called “smokers cough and coughing up sticky phlegm.” COPD is a combination of 3 diseases: emphysema, chronic bronchitis and bronchial asthma.
  2. You bring up some interesting points here. Rat has a good point as well a Shady too. America is the land of the FREE, including free air as you mentioned. There is no FREE air if you have to pump with an electric air pump or if you have to buy air it to fill a SCUBA tank or pay a dollar to air-up a low truck or bicycle tire at the local gas station or run an air compressor. But, if you live anywhere within the USA borders or can get through any US borders legally or illegally (makes no difference) you will automatically get tons of Free stuff for just because you are in the US. When you learn how all the FREE systems works and how to work these systems anyone can live the American Dream and life is really easy and really good there. “FREE” is the real American Dream for over 150 million people in the US today. People worldwide risk life and limb every day to get into the US for Billions of dollars of the "FREE STUFF" like free food stamps, welfare money, public secondary education, college education, medical care, Medicaid health insurance, transportation, public housing, cell phones for everyone, state credit cards, abortions for any problem pregnancies (Planned Parenthood), establish a tax-fee business for 7 years, free driver’s license, voters registration card for all/any State and Federal elections, US Constitutional rights, all States rights, free fake US Social Security cards, fake Green cards, fake ID’s, fake US Passports … Not bad, eh... unless you are having to pay for all this FREE STUFF. Hey Shady, I don’t know anything about return shipping, never thought about that. I’ll check it out if you’re interested?
  3. Most Gurus will claim that the more oxygen the better for a RDWC hydroponic cannabis grow. Some of the bro-science brothers say that more oxygen is always better than less oxygen in a RDWC grow. Some growers know that oxygen is not even close to using ambient air, air pumps and bubblers or high water falls when it comes to RDWC hydroponic oxygenation. Ran across this medical oxygen concentrator company that advertises they will let you try out their new oxygen concentrator on a 30 DAY, NO RISK FREE TRIAL… can’t beat FREE oxygen equipment plus FREE shipping too. CAIRE Oxygen Concentrators | Continuous & Pulse Flow Oxygen‎ Adwww.cairemedical.com/ ‎ Breathe easier with CAIRE. Shop for portable, wearable, and stationary products. 30 Day Risk Free Trial · 5 Year Warranty · 24/7 Units · Free Ground Shipping Highlights: High Quality Oxygen Devices, Offers Full Line Of Oxygen Products... It’s FREE.
  4. Jack434

    Cannabis seed producers, seed growers

    An Excellent point! For the hobby and recreational grower, the quality of cannabis is always relative and always subjective. It is difficult to produce THE healthiest plants and seeds possible, the Top Shelf dope. Those that can may certainly demand and get top dollar for their products. Most fall short because there are so many things that can happen during the growing season that compromise plant health. Cannabis, tomato, lettuce, apple and orange plant health that is compromised in any way during a growing season with less than the best possible growing conditions and or nutrients are definitely not the best plants nor do these compromised plants produce the highest quality seeds or the highest quality buds containing the highest concentrations of intoxicants or CBDs. But just how much quality does any recreational grower really grow for. Most growers simply hope for enough quality to get you high, that’s sufficient and always considered success. Professional growers that sell their seeds for $30/seed and buds for $7500/kilo make a lot more effort to insure the best plant health possible for good reason…. More money. Canada did not change Federal Laws to be kind to all the heads in Canada. I understand that the Government changed the canna-laws to promote growing, consumption and ***to increase tax revenues… for the Money. They simply short-stroked the international Drug Cartel revenues by changing their drug laws, taxed canna-growers and consumers. The heads as well as the consumers are happy. The net results solidified the political base for the future elections. Many things often compromise plant health in many degrees, IE. Root rot always causes a major plant set back even if “the root rot cure” can stave off root and plant death. Root injury always compromised plant health.
  5. Jack434

    Cannabis seed producers, seed growers

    Rat - It is logical that the healthiest and biggest plants will and do produce the highest quality bud and seeds possible for that specific plant. Mexican dirt weed is at the lower end of the bud and seed quality, but it’s dirt weed will is still weed and will definitely get you higher than smoking grapevine or common prairie-grass. Product quality is always relative to plant health, genetics and quality of care provided by the grower during any given growing period. The Aurora operation is definitely impressive, thanks for that heads-up.
  6. Jack434

    Cannabis seed producers, seed growers

    A FEW THOUGHTS: Although $0.10 per seed would be great, Heads might gladly pay $30 USD per canna-seed IF the Head is really convinced the seed possesses some special genetics that will get you high, high and higher up to a full blown other-world adventure which is the whole point of all this genetic manipulation, eh? Effective marketing of seeds like this is paramount in order to make $30 per seed and nonscientific Bro-Science may be the best advertisement, a friend that has a friend claims yada, yada, yada, yada. Seed production is the end result of the quality of the mother plant that produces the seeds. The healthiest plants will produce the best seeds compared to the less healthy plants every day. The healthiest plants will consistently produce the most product and the most money… that should be a “no brainer” even for the seriously stoned grower. Clearly growing seeds is definitely more profitable than growing smoking dope any day. It is a fact that Canada has definitely a world leader in the Canna-market as the Canucks do not dally like the USA when it comes to making Federal Laws and money in the canna-markets. I see Capitalism thriving in the canna-trade in Canada in real time, right now. The general currency in the Canna-industry is not USD, US banks, Canadian Dollars and Bitcoin. It is truly A Brave New Cannabis World for the Canna-Capitalist when the Drug Cartels are inhibited by new drug laws. Making Money, Money, Money - POLITICS
  7. Jack434

    Cannabis seed producers, seed growers

    I appreciate all your responses fellows, thanks so much. I Googled “Licensed Cannabis Growers, Seed Production” and found reams of information. I have found very little scientific cannabis research available because of legality, but that is changing as we speak. The laws are changing and large pharmaceutical companies are interested now and investing in the future. Canada pharma is clearly at the tip of the spear, leading the pack today. It is shocking when you look and see the cutting edge of the world canna-industry in Canada. The Canucks do not dally when opportunity presents! Bravo eh!
  8. Does anyone here have any idea how to contact the growers that produce cannabis seeds?
  9. Round bubbles vs. oval, triangular and square bubbles is novel and definitely requires alternative induced thinking. That is absolutely brilliant, never heard that nor imagined that How in the world do you make round bubbles and what kind of bubblers do that? Sorry the link wouldn’t open on your computer, I’ll be glad to help you out a little here: Understanding Dissolved Oxygen Kurt Becker Even the non-technical growers have an understanding and appreciation for the measurements used in greenhouse growing today. Monitoring and optimization of pH and Electrical Conductivity (EC) have become standard practice, improving plant health and quality throughout the industry. By measuring these two simple factors, most nutritional problems can be avoided. The measurement of Dissolved Oxygen (DO) is also proving to be just as critical to plant growth. As with the other two measurements, there are minimum levels required for a healthy plant. Also, by optimizing DO, as with pH and EC, we can see great improvements in plant growth and quality. However, far fewer growers are utilizing, or are even aware, of this measurement. Many of the practices in botany already consider the effect that oxygen has on the root zone. In the field, we till the soil. Among other things, this adds air space to provide oxygen to the roots. In horticulture, growing media is selected with a consideration for porosity for the same reason. The benefits of oxygen to plant roots, and to the rhizosphere in general, is well established in the mind of the grower. However, most are unaware of the level of oxygen contained in their irrigation water and don’t realize that there are methods to improve this level. Dissolved oxygen is simply the amount of oxygen (O2) dissolved in water. It’s one of the best indicators of the quality, and the life-supporting ability, of water. People need the right amount of oxygen in the atmosphere to survive. And, just as fish need the right amount of dissolved oxygen in the water to survive and thrive, so do plants. Measured in mg/l, as a percent of saturation (%) or in parts per million (ppm), dissolved oxygen levels are affected by the temperature and salinity of the water, and also by other chemical and/or biological demands (COD/BOD) of the water. Cold water can hold more dissolved oxygen than warm water (see Figure 1) and fresh water can hold more dissolved oxygen than salt water. The maximum amount of DO that the water can hold is called the saturation value. It’s possible, and very often desired—especially in a greenhouse—to exceed the natural saturation point of DO in water. This is called super-saturation. At levels around 5 mg/l of dissolved oxygen, irrigation water is typically considered marginally acceptable for plant health. Most greenhouse crops, however, will perform better with higher levels. Levels of 8 mg/l or higher are generally considered to be good for greenhouse production and much higher levels, as high as 30 mg/l or more, are achievable and can be beneficial. If the DO levels are below 4 mg/l, the water is hypoxic and becomes very detrimental, possibly fatal, to plants and animals. If there’s a severe lack of DO, below around 0.5 mg/l, the water is anoxic. No plants or animals can survive in anoxic conditions. The irrigation water in many greenhouses has surprisingly low levels—often in the dangerous hypoxic range. Unfortunately, without measurement and awareness of the dissolved oxygen in greenhouse irrigation water, problems caused by hypoxic water in plant growth often go undiagnosed or misdiagnosed. Happily, monitoring DO is fairly easy. Just as with pH and EC meters, there’s a wide range of devices available at varying quality, accuracy and ease-of-use to test the level of dissolved oxygen in water. When measuring DO, it’s important to understand the oxygen demand in the irrigation system and in the roots. There are plenty of things that will use oxygen in this environment. This is the reason that you might test 8mg/l DO at a cistern or well head, but only 5mg/l at the plant. Organic material in the water, or biofilm in your pipes, will consume oxygen. For this reason, it’s important to test in multiple locations and look for ways to remove as much of the biological demand as possible. However, the detrimental effects of low-dissolved oxygen levels shouldn’t be the only reason to measure. Increasing DO in irrigation water can not only prevent problems, but with super-saturated levels, it can increase quality and plant growth, reducing cropping time and overall health. High levels of dissolved oxygen promote healthy root growth. The root system requires oxygen for aerobic respiration, an essential process that releases the energy required for healthy root growth and a healthy plant. Research shows that higher dissolved oxygen levels in the root zone of most crops results in a higher root mass. A plant with more root mass grows healthier and faster. A plant’s roots are where it gets the majority of its inputs for growth, including water and nutrients. Healthy roots with a good supply of oxygen have better respiration and are able to selectively absorb more ions in solution, such as the vital mineral salts nitrogen, phosphorus and potassium. When there’s less oxygen in the water than there is in the plant, this reduces the permeability of roots to water, therefore reducing (even reversing) the absorption of nutrients. A healthier plant is a more efficient plant DO isn’t just an additional nutrient one should pay more attention to because it makes a healthier plant; there are direct economic impacts, as well. When used properly, it can reduce the amount of nutrients and micronutrients required, as well as the amount of costly chemicals, such as fungicides. Additionally, evidence suggests that plant growth increases with super-saturation levels of DO, reducing cropping times and increasing fruiting or flowering yields. Improving levels of dissolved oxygen can be done through various methods. Simple aeration or agitation can increase dissolved oxygen enough to prevent problems. Injecting air or, especially, pure oxygen can increase levels as well, but only as high as saturation levels. Paying attention to temperature can also help improve DO, as colder water can hold more oxygen. Additionally, water at atmospheric pressure will hold less oxygen than when under pressure. Think of a bottle of carbonated water: while under pressure, the water holds more carbon dioxide than it can when the cap is removed and the pressure is released. Once the bottle is opened, the CO2 begins to gas-off from the water, effervescing. The same is true with oxygen. Adding oxygen to a pressurized system can increase the level of DO. Ozonation is another method for increasing oxygen levels in solution. Like oxygen injection, injecting ozone gas will increase dissolved oxygen. However, ozone or O3 is almost 13 times more soluble in water than O2. This allows for much greater levels of oxygen to be dissolved into the water. As O3 is very unstable and reverts back to O2 quickly, it leaves super-saturated levels of dissolved oxygen in the water. As the system remains under pressure, the DO levels can be maintained at more than 300% of the saturation level of DO. While adding dissolved oxygen, ozone has an additional benefit in that it oxidizes organic material and biofilm in the pipes, reducing the oxygen demand and helping to maintain higher levels of DO. Putting it to the test Trials were conducted at Metrolina Greenhouses in Huntersville, North Carolina. Utilizing a portable water-treatment unit consisting of filtration and ozonation, the benefits of water super-saturated with dissolved oxygen were tested against their standard water sources. Three greenhouses were tested side-by-side using identical benching and booms. One used their pond water, one used their well water and the third used their pond water treated with the trial system. Consistently, the plugs in the third greenhouse using the ozone treatment had higher germination rates, faster cropping times, better root growth (see photo) and better leaf development. Measurement of their dissolved oxygen in the irrigation water used in the third house was 300% greater than in the other two houses (see Figure 2). In a final summary of the trial and of their first year using their own, complete treatment system, Metrolina reported that they saw an average of two weeks shorter cropping time on most liners, with complete cropping time reductions up to four weeks. More robust root systems with less damage and more drought tolerance were noted, as well as the removal of all biofilm from filters and pipes, and an overall reduction in their shrink by 66% from their previous three-year average. These results are extremely impressive and achievable by others with proper equipment. However, growers can improve the health of their water in the short term by simply paying attention to the dissolved oxygen in their water. At a minimum, monitoring DO in irrigation water can help prevent problems or suggest different courses of action as problems arise. In the long run, the ability to optimize oxygen levels could improve plant health quality, reduce crop times and eliminate shrink, just as the focus on other input optimization has in the past. GT Kurt Becker is the Executive Vice President—Sales & Marketing at the Dramm Corporation in Manitowoc, Wisconsin.
  10. They say that fine bubbles are better than giant bubbles for some reason. If you are into really small bubbles you might consider Nano-bubbles produced with a Nano-bubble generator. These little dudes are really impressive… they make fine bubbles look like a basketball comparatively. A major problem with all fine bubble stones as you know, they stop-up often because the pores are small and those little pores are impossible to clean well. Those bubblers are basically disposable but the do work well before they stop-up. Have you ever seen or read this by chance? Understanding Dissolved Oxygen by Kurt Becker 2/27/2017 http://www.ballpublishing.com/GrowerTalks/ViewArticle.aspx?articleid=22058
  11. Would appreciate 2nd and 3rd opinions please from experienced hydro canna-growers about this. Guessing and bro-science appreciated too. The internet dissolved oxygen chart says @ sea level, 79F fresh water, my reservoir water DO will be 8.2 PPM DO and 100% DO Saturation… air pump humming like a champ vibrating the floor and 4 bubblers are frothing the water. I have ask and been told by some hydroponic forum gurus that this DO Concentration/DO Saturation is considered “plenty oxygen” like Perfect Oxygenation. Through actual DO testing, I have discovered over the last year that the internet DO Chart is no more than a DO prediction which is often very different than an actual real time DO test result. I am shocked a so much difference. I tested water with a DO meter and found the actual DO test results to be dramatically different than the predicted DO with the DO Chart. The tested DO in 79 F water was actually 4.1 PPM DO and 50% DO Saturation. This is great dissolved oxygen levels if you are growing hydroponic lettuce and tomatoes. What in the world does this 50% difference in the DO Chart predicted vs. actual tested / confirmed DO Conc. / DO Sat. really mean? My guru buddy says, “50% DO Saturation and 4.1 PPM DO Concentration is definitely considered low-oxygen in a RDWC canna-grow and the oxygen most probably evaporated, like water evaporates.” Why is there so much difference between the predicted DO chart values and the real tested DO values? What could have happened to half of that dissolved oxygen in the reservoir water? I have heard and read about the negative effects of low-oxygen problems negatively affecting (suffocating) roots and Benny health, sick roots and sick Bennies, suffocation, root rot = one stinking, slimy, decaying mess that can happen overnight. She suggest, “buy a larger air pump (buy a quiet air pump) and several more new air bubblers… bubbling more air = bubbling more oxygen… low-oxygen problem will go away, roots and Benny’s will be healthier and crop more productive if not suffocating.”
  12. It’s April now, res water temp constant @ 81F, room air temp 72F, DO Sat. constant @ 100% - 105%, root growth great and healthy, no fungi, bennies prolific, everything looking lovely.
  13. Thanks for responding Rat, I have a YSI 550-A DO Meter, the operation manual came with it. It’s easy to operate, a great instrument, but the meter manual does not say anything about the questions I ask in this thread about these DO ranges for hydroponic pot res water. Last summer, I ask a water chiller salesman these same questions and he basically told I needed a water chiller, "chill your res water and there will be 'plenty oxygen” and no need for a DO Meter. He told me a thermometer will basically do the same thing as a DO Meter. I don’t think he had a clue, but he was a classic water chiller salesmen and had his sales pitch memorized well, he had it down and didn’t miss a beat in his pitch. -- but I really want the benefits of higher metabolism, maintaining res water temp in the low 80's F, not in the 60's. I bought this YSI meter so I can predict any low oxygen developments early and correct the low O2 before roots die and fungal infection sets in, I'm not interested in prevention vs. rotting roots, crisis intervention and the race for the cure. Been there, done that and know that low oxygen insults always negatively affect plant and microbial health even if you are lucky enough to salvage some of the crop. Although most DWC hobbyist say the never have fungal outbreak some of us do... treatment and attempt at the "cure" is a mess to deal with.
  14. Most hobby DWC pot growers say you must have plenty dissolved oxygen in the res water all the time or the roots and microbes die and fungus takes over. I have a new DO Meter: What test numbers on a DO Meter mean “low dissolved oxygen?” What numbers mean “too much dissolved oxygen?” And what numbers mead you have “plenty dissolved oxygen” Thanks

Important Information

By using this site, you agree to our Terms of Use.