Plants are looking way better. The clone; I say you pull it out of the soil. Make a cut right below the bottom node, scrap the bottom stem above the node and put it in water for a day or 2. Then put it in rock wool; soak the rock wool in water first. No need to PH. Also, cut the tips of the 2 leaves at the top like 30% of the leaf. You need to have the humidity high like 90% so put a plastic bag over her or a humidity dome. You should see signs of roots 7-10 days and all out roots in 14 days. Since your cloning a thick stem, it going to take longer. The challenge with clons is not letting air get in the stem or the stem will rot from the bottom all the way to the first node. Thats where the plant seels itself. Man that was long, once I started could stop. Good luck

This one is ready to go