Planting watermelon

1. Do you know what size propagation tray those are?
2. I like the gardening videos!
3. Thanks for sharing is a couple of questions I still have about successful transplanting. I'm curious about a couple of things, first is why this video is listed in the Comedy category? Second, what percentage of your transplant survive? and what do you do to increase that success?
4. How many inches should it b apart??