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Burn or deficiency on this seedling?
- Thread starter Baddog40
- Start date
I agree. Its a little young for a deficiency. And IMO too young to be fed at that strength. So I go with burn.
Your seedling needs a healthy root system to be able to feed at that strength....
I'll agree with burn.
You can get a strong enough root structure on a seedling in about a week using a simple trick I've been using.
Use a frosted/semi-clear 7oz plastic cup and fill it a little more than halfway with hydroton.
Moisten a peat/coco puck and break it up into a 1" layer on top of the hydroton.
Add RO water to the cup until there's 1/4" of standing water in the bottom.
Scuff and soak your seed for 12-18hrs in a cup of RO water with a splash of tap water. (I also put a drop of H2O3 in as well)
Plant the seed 1/4" deep and gently tamp some coco/peat over it.
Put a second 7oz cup over it, tape it to the bottom cup and put it into a lighted area that stays a constant 75F.
Within 12-36hrs, most strains will be showing a sprout. Don't touch it, just leave it alone until it completely sheds the seed hull. (Trapped humidity
Once the hull has dropped off, untape the top cup and move it slightly so there's an air gap. Leave it that way for 24hrs.
Remove the top cup after 24hrs, the seedling should adapt and be just fine without wilting.
Make sure it has enough light that it isn't stretching, keep it at 75F.
Water it once with plain RO after the hydroton almost dries out, you should see some roots already.
Water with 1/4 strength Lucas formula the next time the hydroton is almost dry. You should see nice thick fuzzy roots forming.
Water with 1/2 strength Lucas formula the next time the hydroton is almost dry. You should have roots curled around the bottom of the cup now.
Give it a day or two with the 1/2 strength Lucas formula on the roots and then transfer to full strength Lucas in hydro.
You can easily transfer the seedling by gently dumping the coco/peat and hydroton out of the cup. Pick up the seedling carefully and gently remove any clay balls attached to the roots. Gently squeeze the larger balls of coco/peat on the roots and dislodge them. Rinse the roots off and transfer to hydroton in your netpot.
Make sure you're using 600w or more if you're running full strength Lucas.... other wattages may require tweaking. I run 110w of PL-L 5400K lamps in my veg chamber and keep the res between 780 and 850ppm of FNB.
SmmmmmmmOkin!!!
I'll agree with burn.
You can get a strong enough root structure on a seedling in about a week using a simple trick I've been using.
Use a frosted/semi-clear 7oz plastic cup and fill it a little more than halfway with hydroton.
Moisten a peat/coco puck and break it up into a 1" layer on top of the hydroton.
Add RO water to the cup until there's 1/4" of standing water in the bottom.
Scuff and soak your seed for 12-18hrs in a cup of RO water with a splash of tap water. (I also put a drop of H2O3 in as well)
Plant the seed 1/4" deep and gently tamp some coco/peat over it.
Put a second 7oz cup over it, tape it to the bottom cup and put it into a lighted area that stays a constant 75F.
Within 12-36hrs, most strains will be showing a sprout. Don't touch it, just leave it alone until it completely sheds the seed hull. (Trapped humidity
Once the hull has dropped off, untape the top cup and move it slightly so there's an air gap. Leave it that way for 24hrs.
Remove the top cup after 24hrs, the seedling should adapt and be just fine without wilting.
Make sure it has enough light that it isn't stretching, keep it at 75F.
Water it once with plain RO after the hydroton almost dries out, you should see some roots already.
Water with 1/4 strength Lucas formula the next time the hydroton is almost dry. You should see nice thick fuzzy roots forming.
Water with 1/2 strength Lucas formula the next time the hydroton is almost dry. You should have roots curled around the bottom of the cup now.
Give it a day or two with the 1/2 strength Lucas formula on the roots and then transfer to full strength Lucas in hydro.
You can easily transfer the seedling by gently dumping the coco/peat and hydroton out of the cup. Pick up the seedling carefully and gently remove any clay balls attached to the roots. Gently squeeze the larger balls of coco/peat on the roots and dislodge them. Rinse the roots off and transfer to hydroton in your netpot.
Make sure you're using 600w or more if you're running full strength Lucas.... other wattages may require tweaking. I run 110w of PL-L 5400K lamps in my veg chamber and keep the res between 780 and 850ppm of FNB.
SmmmmmmmOkin!!!
That is WAY to much nutrients, you don't need any until around 3 weeks when your cotelydon leaves (small round first set) start to yellow. Then you have to introduce them to small amounts of food and slowly building them up. Around 250ppm-300ppm is good for small plants/clones, seedlings you might want to start at 150-200 max. Thats at a .5 conversion rate. Your nutes are insanely high, put iton straight RO water for now and let it recover.
Wish I could post pictures with this backup laptop.
They definitely burned that seedling but have to disagree on the three weeks of no nutes thing unless you're talking about soil. I currently have a big fat 4 week old seedling that's been in hydro for about 3 weeks and 4 more that spent an extra week getting lower nutes in soil. The 4 low nute plants are less than half the size of the first and they were all sprouted at the same time and under the same light.
Granted it's easy to burn seedlings but there's a huge growth difference to take advantage of as soon as you know how much you can feed them and how fast.
