Looking much better this time around. Viparspectra XS 1500 Pro arrived mid week 2. The cheap AliExpress light has done its job.
CO² supplementation generally does not work throughout the day BUT I was able to get the ppm up past 1500 (baseline is 440) which I found quite interesting but levels crash within a couple minutes.
Built a ScrOG net for the coming weeks. Don't know if these will grow tall enough to utilise it, which case LST will be implemented instead. We shall wait and see.