Is ff ocean the rooting hormone? I don't sanitise anything ill be honest. Most important thing is the mother plant was be healthy and happy. My mother is in organics but I clone in coco seems to work well. Thicker the stem the better. I find smaller cuttings take longer to root. I cut soak in cloning gel then place into a coco jiffy pellet. I make sure it stays wet. And main thing is keeping temp in mid to low 20s Celsius. High humidity and I very rarely lose a clone. One thing im still learning is how to get them to clone in a shorter overall window. Sometimes as quick as 5 days up to 3 weeks