What burn is this?

Noticed it today on the other leaf it started with the bottom leaves and now its spreading to the next 1. its just the tip. Can any1 identify the burn.

INFO
12-12 since seed.
12 hour sun light and 12 hour darkness.
I feed Organic food like coffee grind, egg shell etc.
Age- 2 weeks and 5 days.
Soil- Home made.
Temperature-28-32 out side.
Humidity-65%.
I water it every day.
Ph- 6.5

if its only on the tips its iron def rusty water works you will need to give it iron same thing happened to one of my plants

"I water it every day."



cannabis likes to dry out between waterings

scroglodyte said:

"I water it every day."



cannabis likes to dry out between waterings

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Well it stays under the sun so it dries up kinda fast.

if it drys up like every day even in the sun you need a bigger pot

if your watering under the sun that can also cause problems!!!! people dont realize but when you water if the heat is consistantly on the plant/pot the pot heats up which makes the water warmer which in turn is like cooking your roots!! always water at night, or early before the sun comes up so it isnt too hot for when feeding

OmNomEdibles said:

if your watering under the sun that can also cause problems!!!! people dont realize but when you water if the heat is consistantly on the plant/pot the pot heats up which makes the water warmer which in turn is like cooking your roots!! always water at night, or early before the sun comes up so it isnt too hot for when feeding

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I only water at night. Before i put them in the closet.