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Seedling leaf tips turning white.

Terry420
Terry420started grow question 5 years ago
Hiya guys Any advice on why the tips of my auto seedling 8 days old are getting white tips ? It’s in coco 80/20 On 20/4 cycle Only had bottled water as feed at room temp. No nutes. My led is 600w about 40-45 cm above them.
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Leaves. Curl up
Leaves. Other
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Terry420
Terry420answered grow question 5 years ago
So I fed them .5 L each and there was a bit of run off that was quite orange I watered them over continuous release pellets until my nutes arrive this week. Covid19 making delivery long.
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The_420
The_420answered grow question 5 years ago
Bonjours Moi je ne m'inquièterais pas elle est encore jeune. Je pense que FREE_HONGKONG a raison. Mais parfois la nature fait ses petites caprices et on ne peut ren y faire. En tout cas elle a l'air saine. continue comme ca
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souljasam
souljasamanswered grow question 5 years ago
Hey! The other guys advice would be solid if you were running soil. With coco however, there are no nutrients in it and coco holds lots of air which makes overwatering difficult. Coco is actually a hydroponics medium so you really dont want it to dry out. You should water it daily at least. If coco drys out it repels and doesnt absorb water, making it very difficult to saturate all the coco when you water. This can lead to dry pockets of coco in the middle of the pot that will dry out and kill the roots. Also when you water you want to make sure to have 20% of the water you put in to run out the bottom of the pot to flush out any old nutes when you are feeding. Make sure your pot has tons of drainage as well and make sure to discard any runoff so the plant isn't sitting it in being overwatered. You dont want any water pooling in the bottom of the pot. Another thing to note, you should have started feeding nutes once those first serrated leaves grew in. Since coco has 0 nutes in it, the seedling will eat through its built-in reserves quite quickly. So at this point you should start feeding nutes. Coco is also different from soil in that you need to feed every time you water or you will be starving the plant. Coco also requires a lower ph level than soil and ph levels are extremely important. Coco likes 5.5-6.0 for ph. Too high above that and the plant just cant absorb a lot of the nutrients it needs for daily growth and it will pull them from its leaves. Make sure your lighting isnt too close to the plant as well. The white leaf tips could be light bleaching. Coco also sometimes comes with lots of salts in it because it comes from coconuts. Usually you need to wash it before use. These salts can burn the plant. All in all it could be a few things. It could be light bleaching, salt burn, incorrect ph, or the complete lack of nutrients. I would start by raising the light a little and feeding nutes. Hope this helps! Feel free to dm me if you need more help!
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CRiSPrGrow
CRiSPrGrowanswered grow question 5 years ago
Hey there, so it's due to the lack of a wet dry cycle. I know seedlings dont like it when it's dry but actually it's important to have a wet dry cycle. if the medium stays too wet that means that the nutrients in the soil are available too much , which will lead to burning. Just do better to leave the medium to dry a bit more and the problem will stop spreading. if you're in a a "big pot" usually you dont need to water everyday. Hope this helps ! 🚀
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MadeInGermany
MadeInGermanyanswered grow question 5 years ago
Hey Bro, could it be a little too wet? but looks great, it will come 🙏🏻👌 there is a very simple trick when you give water. Let it dry nicely, then lift the pot up and remember how easy it is. Then pour it and lift the pot back up and notice how heavy it is now. The next time you water, you will only do it again if the pot is as light as when you started. As a pure beginner, you can also use a scale and note the weight ፦). Keep carrying as before 👍 Your plant is beautiful
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