HELP! Burn?

[AlessandroLoco]

Ehi guys what do you think about it? I am at the beginning of the fifth flowering week and my 4 plants are smoking good. I treat them more or less the same way, they drink 2.5 l of water with nutrients every 2 days. The humidity in the room ranges between 48 and 55% RH and the temperature from 18 to 22 ° C.
I also recently moved my LED lamps 10 cm away the small buds on top. However the upper leaves of my amnesia seem burnt and one or two even a little yellow. I don't understand why she is the only one who is not very well ... thanks!

[Canuck147]

Oooo - ouch - you started smoking them already? hehehe - Is Dave there!?

You neglected to specify what kind of nutrients. Cal mag or something like that?

[AlessandroLoco]

I use all the nutrient indicate by remo nutrient for the flowering stage. I dont use any cal mag

[Xena]

What kind of lights? 10cm is 4 inches and that seems super close.

[AlessandroLoco]

I said that badly. I meant that I moved the lamps another 10 cm away by moving them from 40 to 50 cm away from the apical tops

[RagWeedDWC]

Agree with Xena and Canuck147, what kind of nutrients are you running, and 4 inches is way to close. What kind are they?

[RagWeedDWC]

I'm not familiar with those and grow hydro so this just may be a SWAG, I would flush then start back with a less concentrated mixture of nutrients In addition, take a look at this https://www.growweedeasy.com/cannabis-symptoms-pictures Its a shot in the dark, but may help. Good Luck!

[AlessandroLoco]

Thanks a lot. For whashing how much water should I use? The plant is in a smartpot 3 gallon

[RagWeedDWC]

I'm not sure on the flush, with my DWC I just drain the tub and let them soak in plain R/O water with a light dose of cal-mag and hydro guard. If you are using RO Water then I would also recommend using Cal-Mag.