Still haven't repotted the big Anthurium but the propagation experiment is going alright. Almost all the Epipremnum cuttings are already growing some roots after two weeks. Most roots to least, from left to right: Sphagnum, terramol, volcanic rock, leca, water, my aroid mix, coco husk chunks, bark chips:
I did have to wipe all the leaves off because most had some superficial mould, I guess I should air the propagation box a little more frequently.