SDG420

It's really about the placement (/blowing air temperature). Got the big one angled downwards cooling my GCx4 to use the warmer air for the plant. That said, i work with automated fans depending on the microclimate (HomeAssistant)

What caught my eye, this grow space is too tiny for this cultivar (especially when mainlining) - even using SF1000. Got some similar, but slightly bigger, stealth build (40x60x150) and it's brimming after the stretch. Done right, this is a yielder. I can imagine why the crack happened. i refrained from LSTing too much as these shoots get chunky, really chunky, fast. Get light on Nitrogen.