Hellou, It's been about 5 days for the leaves to do something like this, before i used flora trio gheneral hidroponics with small dosage . I used only distilled water, what problems can the plant have?
Hi Axel! It seems to be heat stress.
You can try moving the lamp away from the plants a little or lowering the temperature of the room.
If you are growing outdoors, make sure they have shade in the hottest hours and water with fresh water in the morning.
Saludos!😊