Such beautiful content! Thank you! From my experience: The humidity is probably too high and soil too wet for Cephalotus. Places for Heliamphora were probably too dark. My Cephalotus grows in a pot standing at a window in a 1:1 peat:sand mixture.
You got the skill and patience on those lights man! Love your concepts throughout your channel. Definitely one on YouTube’s best and my favorite. Much love! 🙏🏼🤍