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  1. JavaCo

    Where do you buy seeds?

    Any organic produce you buy can be harvested for seeds. I save seeds from anything that tastes good. Cheapest way to get seeds and it is a healthy.
  2. JavaCo

    Do I have enough light?

    The hydrofarm par meter measures umol m/s which is PPFD so if yours is like that then you are measuring PPFD. Thought maybe you got your umol/s from a one of the LED manufacturers calculators. But i wouldn't run co2 at those light levels going to have to have over 1000 umol m/s before I would...
  3. JavaCo

    Leaf Miners

    I get them in my veggi garden outside but this year I went with these predator nematodes.
  4. JavaCo

    Do I have enough light?

    No way to know without a PPFD number or how big your grow space is. PPFD is umols calculated for a given space. 800 umols in a 20 by 20 foot room not even close to enough light. 800 umols in a 1x1 foot tent would be more then enough. So pretty tough to answer that question without more info
  5. JavaCo

    Leaf problems?

    Last Picture looks like a calcium deficiency to me. Might want to add a source of calcium see if that fixes it.
  6. JavaCo

    How do you measure a cup

    Cups sizes are different all over the world. Buy some Japanese ones and you will save $ on amendments https://en.wikipedia.org/wiki/Cup_(unit)
  7. JavaCo

    How do you measure a cup

    You could just use a liter as 4 cups it will be slightly more then 4 cups by 40ml but it is pretty close.
  8. JavaCo

    Driver help please

    You have to factor in efficiency The newest vero18 are about 60%@ that current so really the heatsink would be seeing about 30 watts of heat and the other 42 watts get turned into light. You want the thermal resistance number of the heatsink, to do a proper heatsink calculation. Here is a link...
  9. JavaCo

    Dolomite Lime and Coco - pH problems?

    Peat is acidic so it needs to have something to bring up the PH like lime or oyster shell, but coco is pretty much neutral so liming it is going to make the PH go too high. I would try gypsum if your going to use 100% coco it is PH neutral and will add calcium and sulfur for the plants.
  10. JavaCo

    Driver help please

    Might want to try the Bridgelux calculator it will do the maths for you. https://www.bridgelux.com/product-simulator
  11. JavaCo

    Driver help please

    Vero 18 D runs at 27.2 volts when driven with 350 mA @25c 27.2 x .350 = 9.52 watts a cob drive them @ 500mA and they run @ 13.8 watts. That rough math is pretty rough :eyesmoke:
  12. JavaCo

    How do you tea & organic yourself all year round?

    Grow lots of comfrey in the summer months cut and dry it for winter. Lots of other plants can be grown for amendments and teas like aloe, shave grass, stinging nettle, alfalfa. Tea's generally need to be made fresh so they don't go anaerobic so not something you can preserve and bottle up for...
  13. JavaCo

    Ph

    Here is a write up about PH by the Iowa State University. Sulfur is going to be the cheapest way But peat moss might already be in your grow arsenal. https://hortnews.extension.iastate.edu/1994/4-6-1994/ph.htmlThis is for soil if you want to PH water Pretty sure citric acid is the cheapest PH down.
  14. JavaCo

    Driver help please

    If you run vero 18 D,s @ 350ma it is only like 9 and a half watts a vero. The ones you are driving @ 1400ma are running at 42 watts a piece. Pretty big difference in the two. You sure the veros were on a 300ma driver because thats only 8 watts a vero. The driver Isaw picked out for you would...
  15. JavaCo

    Driver help please

    Need to know what vero gen 7's you are running they have a three versions C,s D,s and B's they run at different voltages so important to know what ones you have for making a driver selection. Also how many total veros do you have ? might be able to run one driver for all your LEDs which is...
  16. JavaCo

    Multimeter Suggestions and How Do I Measure?

    You would need a PSU for it if the driver voltage is over 30. Old cell phone charger would work most people have a extra one or two laying around.
  17. JavaCo

    Multimeter Suggestions and How Do I Measure?

    Get you one of these going to be cheaper then buying two meters. https://www.ebay.com/p/DC-100v-10a-Voltmeter-Ammeter-Blue-Red-LED-Dual-Digital-Volt-Amp-Meter-Gauge/595280927?iid=222595229103
  18. JavaCo

    AACT, Bloom Tea, Veg Tea, Fungal Tea, Myco Tea, recipes from the outdoor guys.

    Thats awesome you don't even have to chew to get a nice dose of ass cancer causing water now days, lazy humans will be really happy. https://www.cancer.org/latest-news/world-health-organization-says-processed-meat-causes-cancer.html
  19. JavaCo

    New study: Exposure to LED not good for us

    The New study was on drinking fruit juice not eating whole fruits. To say eating whole fruits is bad is to throw a super food under the bus. If fact experts say if there was one thing people on the planet could do to stave off a premature death, it would be to eat whole fruits and veggies every...
  20. JavaCo

    Malted barley

    For it to be truely Organic you would also want to use a organic 2 row barley. Problem with regular wheat and barley is some of the farmers up north use round up on the crops 1 to 2 weeks before harvest, it is called desiccating. Helps them harvest earlier and it is easier on the harvest...
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