Alright because I've got 2 like that, and 1 other one that's completely fine and literal same setup. I mean I'm not honestly sure what I've done to cause this haha
Perlite s huge,it helps the roots get oxygen,and like Kenny said it helps the run off and it will help soil dry quicker,I d definitely consider adding to your soil in future grows.
Update- So I've added perlite and repotted to nursing pots about 8 inches tall. Growing seems to be fine, but still some yellowing. I've been under control with the watering. Any recommendations again? It seems to be growing fine but still some tips are yellowing still, added another fan to cooler down temp to 77.3°F at all times and still on an 18on 6 off time.
Richard here...and here are my latest...note lack of yellow tips... Good job though on taking the pic without the purple light on!! Pbbbt