Brown spots - Please help

[elliotgreen]

i have started noticing some small brown spots i think there are around 6 in total, here is my set up..
300w led lamp 24 inch away from top of plant
canna terra professional soil
big pot not sure how big
fan
temp 27c
humidity 45-55
water not being ph'd but comes out tap around 7.2 and left to sit for 24 hrs
i am feeding her some old timers grow 1/4, cal mag 1/2, seaweed extract 1/2, molasses tsp/gal...
and i have been spraying her in the mornings with some nitrozyme...
i do a water feed water feed routine two days ago i it was water with some molasses.
any other questions feel free to ask

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[I like Cheese]

It could be some burning from spraying with lights on.

 

[elliotgreen]

It could be some burning from spraying with lights on.

possibly but the lamp is really cool theres no heat under it what so ever i might start spraying when lamp goes off


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[elliotgreen]

It could be some burning from spraying with lights on.

i spray the underside of the leaves soo so dont really get many drops on the top and its weird how the spots have only come up on old leaves


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[I like Cheese]

Ok. Could be the start of nute burn. Maybe back off on the nutes a little, it is easier to fix now if it is.

 

[elliotgreen]

Ok. Could be the start of nute burn. Maybe back off on the nutes a little, it is easier to fix now if it is.

i will keep a close eye on her .


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[I like Cheese]

Do you her dry out between waters ? It is a good idea to let the soil dry between waters.

 

[elliotgreen]

Do you her dry out between waters ?

yeah it takes a good 7 days between watering so the first and last time i fed her was the 17th


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[I like Cheese]

Ah ok. Maybe it's just how it is. They look really nice. It really will not hurt to start giving less nutes and build up again. If it starts to spread.

 

[elliotgreen]

Ah ok. Maybe it's just how it is. They look really nice. It really will not hurt to start giving less nutes and build up again.

yeah might cut the nutes by half ive give her a spray with some cal mag so il see how it goes


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[I like Cheese]

I don't use Cal mag, I use epsom salts. But I have read you must also be careful with cal mag.