@franc, first thank you very much for reaching back!
Eureka! I was questioning what was happening to the plant cause it indeed looked like a magnesium deficiency and it might be due to the light! I have a dim option on the lamp so we'll go down 20% on the density, unfortunately it is already at max height. Thank you for this knowledge
@Blvck75, Hello, you will definitely succeed, but first of all you need to raise the light higher, because your plant shows an excess of light.
raise the lamp a little. With an excess of light, it can begin to eat away easily accessible elements such as calcium and magnesium, you do not need this, the sheet should not be loaded only with these elements, you need space for others
@JuanHaze_Arg, Hello, I am using a fertilizer developed by my friend. 7 bottles each separately chelated elements
calcium
magnesium
iron
nitrogen
trace elements
phosphorus
potassium silicon