Yo havent feed em since they are really green when the lights are off .
Growth hasnt stagnated and i havent seen yellowing become worse so far.
My Suspicion about the blotches that is either wind damage or damage for leaves gettin moist and light burning it!
I Realized i might have been...
Tnx ill give em a taste of food when soil drys i got Plagron Alge Grow as a gift in grow shop guy was saying he uses it and that is good and it seem to have higher values then Guanokalong so ill try givin it
Im kinda perfectionist :( and i suffer from OCD thats why i might be overthinkin it but something is clearly not right so i wann get to the bottom of it for my future endevaours! :)