Reddit reviews Plant Flower Watering Bottle for Garden Indoor Transparent 500ML

There's a pretty wide variety of watering methods. In general though you don't want to water at all until your prop starts to produce roots. At that point most people begin doing a light misting every couple days.

I personally don't prefer to do that because I don't like to get the props wet. I leave my props mostly alone while they're still attached to the mother leaf. I go in with a small spouted watering bottle like this maybe once every two weeks and put a small amount of water right on the roots. Other than that I just keep the roots covered and leave them alone.

I don't begin watering consistently until the mother leaf begins to dry up. At that point I transfer the prop from the starter tray to a small pot with drainage and begin to water it like a normal succulent.

I just use a squeeze bottle like this (just the first one I found on amazon): https://www.amazon.ca/Flower-Watering-Bottle-Garden-Transparent/dp/B00XHN9NUK

But this is exactly what I do too, I water a small amount every couple of days to encourage root growth

If it's only a few succulents you have problem watering, you can use something like this