I'm growing think different under a 180w (actual draw) vipar led here's a pic its the one on the right they are day 41 from seed View attachment 392096
You're off to an excellent first start bro! Got a source of Cal Mag? Autos, especially under led, and extra especially a monster like TD is going to need some Cal and Mag there's a great organic and inexpensive source easily available, called CaMg+ by General Organics, I'm using some now and very happy with it.