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  1. FourthCity

    Vpd struggles.. Whats wrong with this leaf?

    The plants are too small to get accurate readings for vpd. With your temps and rh where they are everything is probably fine, plants look good. The app you are using for vpd doesn't look like it will be useful, I have seen very few vpd apps or devices that take leaf temps into account, without...
  2. FourthCity

    Best and cheapest kind of LED light full sprectrum

    Just curious, do you think the people in china are hacks because they are chinese? What is the "other" light? Spider Farmer is a chinese company that sells imitations of hlg and gavita products, what sets them apart from their other chinese competitors? Both hlg and gavita lights are made of...
  3. FourthCity

    Small thin buds on plant

    Is it Dr. Grinspoon? https://growdiaries.com/seedbank/barneys-farm/dr-grinspoon Yours sure looks like a dead ringer for it. If someone gave you a grinspoon seed and said it was some other strain that would pretty much be the weed equivalent of getting rick rolled.
  4. FourthCity

    Harvest Help for a Newbie Please

    Your not going to ruin anything by waiting, some people just prefer to harvest earlier than others. If you haven't developed a preference yet then I stand by what I said earlier about harvesting the top buds now. Use this as an opportunity to find out what your preference is, try some of the...
  5. FourthCity

    Harvest Help for a Newbie Please

    Ed says ripening takes a couple weeks but your experience may be different. Flower ripening starts between the fifth and eighth week. The calyxes (ovaries) start to swell. These are false seed pods; the flowers have not been fertilized and no seed can develop. The swollen calyx is one indication...
  6. FourthCity

    Harvest Help for a Newbie Please

    Lower growth wont be as far along as the upper buds, you could harvest the tops before you leave and let the rest continue to ripen until you return. Nothing wrong with harvesting in stages when needed. I've never seen a plant go from all clear to over ripe in three days, that seems extremely...
  7. FourthCity

    Kingbrite review

    That footprint is fine for veg but you really want at least 40 watts per square ft (16 240s in a 10x10) to give your plants what they will need in flower. The split heatsinks let you space each board more evenly while the larger boards cost more per watt after shipping due to their irregular...
  8. FourthCity

    Best and cheapest kind of LED light full sprectrum

    I think this thread has lost the plot, everyone seems to have missed the context. My suggestions and arguements are in the context of the ops question what are the best cheapest kind of led full spectrum light. Suggesting lights that are 2-3 times more expensive just to have some debatably...
  9. FourthCity

    Best and cheapest kind of LED light full sprectrum

    Again, the actual studies he is citing to back up is claims are about lettuce, he is theoretically applying those results to cannabis.
  10. FourthCity

    Best and cheapest kind of LED light full sprectrum

    I agree with the first part 100% but my main difference is that I'm suggesting solving the issues you bring up with several smaller fixtures rather than a lower number of larger fixtures. You can still buy roughly two kingbrites for the price of one spider farmer of the the same wattage, I...
  11. FourthCity

    3rd design on my hydro grow.

    Not the best pic but it was already in my profile. I just cut a hole in the lid of the trash can the same size as the net part of the net pot lid and its only a few inches taller than the 5 gallon buckets. Also gets two airstones compared to the one airstone in the 5's. My ceiling is only 7ft...
  12. FourthCity

    Best and cheapest kind of LED light full sprectrum

    18:15, lettuce graph referencing study, then he suggests they independently verified results with a bunch of other crops, none of which are cannabis 20:04, references another lettuce study 24:25 suggests if they can show these wavelengths are beneficial to other crops then fixture manufacturers...
  13. FourthCity

    Best and cheapest kind of LED light full sprectrum

    Not disagreeing with that guy but he is referencing studies on lettuce not cannabis.
  14. FourthCity

    3rd design on my hydro grow.

    In case it helps, I've had good success with using a 10 gallon rubber trash can as a dwc bucket, it kind of the combines the best of both of your setups without the drawbacks. The 10 gallon is half as much maintenance as the 5 while still keeping the temps down by only using air stones without...
  15. FourthCity

    UV light and Iron Bacteria

    Get a reverse osmosis system with a pulsar quantum disinfection cartridge.
  16. FourthCity

    Best and cheapest kind of LED light full sprectrum

    The more lights (cobs, quantum boards, strips, etc) the more even your ppfd will be across the grow space. I like the 240w boards (especially the ones with two heatsinks) better than the higher wattage fixtures because they allow you tailor the spacing, height, and brightness of each light to...
  17. FourthCity

    Is there anything else I need to run with Megacrop nutes?

    Its a relatively small amount in the tea which is then further divided amongst my dwc buckets, never been an issue for me.
  18. FourthCity

    Best and cheapest kind of LED light full sprectrum

    I don't think there is anything new or useful being discussed here that would benefit that thread but I didn't mean to start an argument either. I just wanted to give the op a straight answer without getting into a debate over the premise of their question. Also, being familiar with the...
  19. FourthCity

    Best and cheapest kind of LED light full sprectrum

    The price has nothing to do with how a light performs or how much it your plant will yield. Overpaying for a poor quality light wont make it better and getting a good deal on a nice light doesn't make it any worse.
  20. FourthCity

    Best and cheapest kind of LED light full sprectrum

    17 of these in 3500k. https://kingbriteled.en.alibaba.com/product/1600224836018-813401809/Pre_assembled_kingbrite_240w_QB288_board_original_samsung_lm301b_3000K_3500K_4000K_full_spectrum_240w_led_grow_light_kit.html 4080 watts, 40.8 watts per square foot, $2687.50 shipped if you are in the US.
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