u/Appropriate-Nail-742

Wanting to know thoughts on medium for my philo variegated Melano? This was originally TC, and honestly it grows pretty quick, I've taken several cuttings of it. I have the original plant in fluval stratum/perlite with self watering cup and a cutting I took I have transferred to chunky soil mix. Photos of both below. My question is, what do we suggest for this? Self watering in pon or go to soil? I want the leaves to start getting larger, they are both currently in high humidity under Barrina T8 grow lights.