20c to 24c normally works for rooting up, you can push that a bit more but then you get rot issues
when taking the cutting do the cut under water or put the cutting into water (with some root stimulator if possible) asap air getting into the stem stops cuttings developing
then use root gel or what ever put them into rockwall or right into your cloner
some people leave clones in the dark for 1 to 10 days before putting them under the lights the idea is that lets the plant focus on rooting, I just cut the fan leaves shot and leave a dome over them
sometimes 10/10 take sometimes less if they all die then I assume they got too wet or too hot or dirty scissors when taking the clones, they don`t always take but some strains do clone mega easy and others seem to refuse to
But the fastest clones I ever got was from using ph`d water and an HF electronic fogger, roots seem to grow in days, a little rooting stimulator would make them do better but a good rooting gel seems to help
Actually tempted to set up an aero cloner again now, save my rockwall for starting seeds in, lol