Question: what's the deal when the tips turn light brown? They don't look heat burned because the leaf isn't warped, just browned at the very tips like in this picture. From other pictures, I'm pretty sure it's -dum dum dum- Nute Burn. However, I DIDN'T GIVE IT ANY NUTES AND THE SOIL WAS NEUTRAL! It's only appeared like this on the sativa's in my grow, btw. Can't figure this out. -browning picture
yeah, it looks just slightly burnt. likely from your soil. It doesnt look bad though. If it gets worse just flush the soil, which should be pretty simple given your container size. what soil are you growing in?
yea, it definitely looks like burn. this soil is a sterilized, simple soil with b-1 additive. it's pretty rich and never gave any of my indica's problems. it's a little lower than neutral in terms of pH. the only thing i can think of is that i used the same bottle to apply the fertilizer to my big plant as i did to apply just the water to the small plants. maybe it had trace amounts. this is new picture: the new leaves don't look bad, so i think it must be getting over it. are sativas usually more sensitive to nute burn? thanks for your help, btw.