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  1. Dr. Who

    Should nutrients (ppm) be increased with Co2 enrichement?

    No, not P def. How close do you hold pH? In any hydro situation - set it to 5.7 - 5.8 and let it ride up to 6.1 - 6.2 and then reset... The "swing" is important to plants. Both in the ground and in hydro. Soil self regulates pH..... Unless you screw with it by use of certain nutrient...
  2. Dr. Who

    Environmental changes in week 6 of flower? (Wedding Cake)

    May bad. Old timers is getting to me (NOT Alzheimer's).... Greenhouse Operation & Management or known in the industry as Nelson's Greenhouse Guide. Based on the author's life-long practical experiences both in the industry and in research, this best-selling, state-of-the-art guide to the...
  3. Dr. Who

    Need help identifying weird brown splotches

    I suggest you do any watering to the edge area of the pot. Don't just pout it on the plant and around the stem. By doing it like I suggested? You get the roots spreading out to the moisture in the media! Helps balance nutrient uptake in very young plants too. You might be having a minor...
  4. Dr. Who

    Should nutrients (ppm) be increased with Co2 enrichement?

    NEVER have I been a fan of Cal nitrate use. The nutrient maker is short cutting better N sources for more available Ca. The thing is? Cal Carbonate makes a better Ca source for both the pH and the plant at the same time. Up your Mg.... Mg sulfate at a rate of 5ml per gallon of feed works...
  5. Dr. Who

    Environmental changes in week 6 of flower? (Wedding Cake)

    Ethylene gas is produced by the plant to ripen it. It helps initiate, and makes for a smooth and accurate finish. Gassing a plant during the last 3 or at LEAST last 2 weeks... WILL cause uneven and slow finishing..... More need to do layered harvesting. Not to mention that the plant is spending...
  6. Dr. Who

    Environmental changes in week 6 of flower? (Wedding Cake)

    GREAT IDEA - - BUT, Most feeding chart formulations are actually OFF for cannabis... A healthy plant should be green to the almost very end. Exceptions are how the strain colors and/or how you run it...
  7. Dr. Who

    Environmental changes in week 6 of flower? (Wedding Cake)

    I wouldn't drop my night temps more then 15 deg F.... Dropping as low as 50? This will slow growth a bit. It takes the plant longer to warm up - especially the root system.... In ANY ebb and flow - HYDRO system or method......NEVER allow the res to get to 70 F.. You'll find out a lot about root...
  8. Dr. Who

    Is it Possible to Profit From Creating a Cannabis Strain?

    "Stable clones" = more repetition of the desirable traits you wanted in her. If you know who your partnering with. As far as their resulting strains have been... I tend to get hand picked clones..... Gotten tired of pheno hunting others work for the pheno.... Some can be terribly hard to...
  9. Dr. Who

    Should nutrients (ppm) be increased with Co2 enrichement?

    Yes - How much Cal in base? Little much? Maybe for those strains yellowing. Looks like low N, maybe some high P along with it.
  10. Dr. Who

    Is it Possible to Profit From Creating a Cannabis Strain?

    Oh it's still got the rush. Just no fear/paranoia etc.. Ohmmm, ohmmm.....lol
  11. Dr. Who

    Should nutrients (ppm) be increased with Co2 enrichement?

    I like around an NPK value of 4-6-6 in bloom. Some minor tickling of P&K at early stages of bloom. maybe a bit of N drop, and a slight P increase in the last 2 weeks or so. That is with strains that want that. Add the Cal/Mg and keep the base too.. How much added in the base is the question.
  12. Dr. Who

    Is it Possible to Profit From Creating a Cannabis Strain?

    Sure you can. I took the time to cross an original GG#4 with a real solid Bruce Banner pheno. The whole Idea was to remove the "paranoia" some get from the uber potent old school GG#4. With the calming effects of the Bruce Banner. While still holding the "stupid" buzz of the GG. It took only...
  13. Dr. Who

    cloning autoflowers?

    It's NOT worth the time and supplies vs fresh new plants from seed.
  14. Dr. Who

    Should nutrients (ppm) be increased with Co2 enrichement?

    Yes! I see Cal/Mg issues starting in those leaves pictured. Coco needs extra! As far as the discoloring plants go? I would say that's low N and/or high P problems starting. What is the NPK value your feeding? Don't give me EC please. NPK value is what I need to make the right call! Always...
  15. Dr. Who

    how long for nutrient burn to show up in leaves?

    Rockwool and flood and drain. 5 - 15 min floods a lights on cycle. 1 at lights on and 1 right before or right at lights out - carries the plant over to the next lights on. After looking at the plant pic's. The "canoeing" of the leaves indicates either higher heat or lower RH then optimal. Now...
  16. Dr. Who

    Should nutrients (ppm) be increased with Co2 enrichement?

    Coco eh? There it is. You need to run extra Ca and closely watch your Mg input. Run the Ca/Mg at full strength - CaliMagic is a good choice and 5ml per gallon would be my baseline. Be prepared to add more if needed. Si IS a good choice for any type of hydro application. Only N issue's...
  17. Dr. Who

    Mosaic disease?

    It should be noted that there are few viral's that infect cannabis. Mosaic's are NOT one of them. Sun Hemp is a bean and sun hemp mosaic is surely not one either!
  18. Dr. Who

    What pk booster is the best

    PK boosters tend to do more bad then good! High P can be very bad! It causes the plant to mature too fast and they will yellow out and die... I don't run my P over a value 7 in NPK during bloom. Average MPK for me in bloom? 4-6-6 I do run some K sulfate early to mid bloom and stop. Same...
  19. Dr. Who

    Lst on day 26 can fluctuations in temp cause pistils on main stem to prematurley change colors before flower?

    WATER them! As far as the first 1 question? No, not really. Seeing where were you are and how "green" you are... Don't sweat the little shit. Patience is needed here. But, come on back and ask questions as need be. I might sigh a bit ("this question again?") but, I have yet to see a "bad"...
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