overwatered, burned, or both?

Discussion in 'Sick Plants and Problems' started by riffriff, Dec 2, 2014.

  1. I have some 10 day old Think Different Autos grown from seed in 5 gallon buckets of FFOF. I am watering with distilled water only, no food. I am using a 400 w MH, and my temp is 78F. I gave them a first water at 1 week, which was too early, and now, three days later, all of the original growth is yellowing or burned. They were fine and healthy before the water, and a lot of new growth has happened since, all of which looks good, with no burning, but the old stuff looks bad. Can over-watering(watering too soon, not too much at once) release excess nutes, or is the soil just too hot? I am hesitant to flush right away, because the new growth looks good, so should I just wait a few days and see if the burning is done? Is this burning, or a def of cal or mag, or over-watering? My run-off is 6.8, so Ph seems okay. 

     

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  2. many people complain that soil is too hot for seedlings. Happy Frog next time.
     
  3. burned. it has too much in it man. i almost did the same thing til i read the part about guano in OF. happy frog all day every day for seedlings, unless you can afford the special root boosting soils
     
  4. You should really have it in a smaller pot too.  It is really difficult to adjust the soil with such a small plant.  It can't take in as much moisture as the soil can hold (by an extreme margin), so you have to wait for the soil to dry on its own.  It can take a couple of weeks for it to dry from just one watering.   A smaller pot will keep the plant and soil in check together.  Stage them up from a solo cup, to a 1.5 gal (aprxo), to a 3 or 5 gallon.  It will make your trouble shooting easier.
     
  5. I am going to go DWC next run. I'm done with soil. I want something i can control and react to quickly. But these seem to be getting over the burn, as it has not gotten any worse, or spread, and lots of new growth. 
     

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  6.  this is the most reasonable argument i have heard against 5 gallon pots.
     
  7. Soil is like your gramma's Buick, you know what to expect provided you keep things simple.  Hydro is like getting your drivers license and buying an F1 car the same day expecting to operate it successfully.  Soil is much easier to recover from.  Hydro can go REALLY wrong REALLY fast and kill all of your plants instead of just one pot like soil.  ;)   Your plant will recover and be fine.  Give her a little time.
     
  8. I am not against them, just not for such a small plant. 
     
  9. I'm starting to worry now. The smaller of the two(now the larger, but still 1 node behind) recovered from the mild burn and is doing great, but the other, not so much. It is growing, and adding lots of new shoots(more and faster than the other plant), but it does not look right. It has really light leaves, with darker veins. I flushed it yesterday with 15 gallons. Is this still from nute burn, or did something get locked out? 
    first pic is the healthy plant:
     
     
     

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  10. the flush seems to have done the trick. Lots of new growth with no new burning. I also realized that i could get the few more degrees of warmth i needed from 200 actual watts of cfls, instead of a space heater. more lumens, same temp, less energy use than a heater. 
     

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  11. Personally ive never had to wait more than 3-4 days with my five gallon pots to dry, but proper aeration is key. Im running 20 plants in five gallon pots right now, no issues at all. But theres a way to water your plants and a way to overwater your plants.

    Your amount of perlite doesnt look consistent between the two plants op. this will all come together and simplify with experience imho.
    ~ poke
     
  12. mag deficiency from over watering..Id spray them with some epsom salt and let them go like a week till you water
     

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