Thin new leaves with yellowing tips

LLanier

LLanier

Active Member
Hey guys.

Ran into a new issue that I haven't seen over my last 5 runs.

These are autos im doing. They are about 4 weeks old. Growing in kis organics bio-char living soil, 3 gallon fabric pots. . 20/4 light cycle. Dechlorinated tap water. Ph of 6.3 to 6.6. Quarter gallon every 2 to 3 days.

No nutes added. Its water only soil, will top dress in a week or 3.

Day temps 76 to 79. Night temps about 68 to 70. RH in the 50s

Thin new leaves. The lowers are fat fucks. And the new growth has yellow tips and downward curling.

Lower leafs are fine.

Id like to think its a more burn issue but also nervous about a root problem .

Any ideas? Thanks !
 

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garybo

garybo

Well-Known Member
The dull color of the leaves plus the burned tips, you may be correct. I'm sure you have raised the light just in case. I'm not very acute about indoor grow or auto's. Tried both and was not very good at it, but when I was growing indoor, I was advised to get a light meter, go outside on a sunny day and take the measurement, this will give you a relative idea of how much rays the sun is putting out and your lights should be relative to that reading.
My 2 cents and good luck
 
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