Stop turning your eggs at day 20. Generally Bobs can start hatching at day 23, although this is just an average day. On day 20, as DC has stated, get your humidity up to 65% or 70%. Use damp sponges in the incubator if you have to to get the humidity up. Place your eggs on some sort of nonskid material. That rubber shelf liner with the tiny holes makes a great surface for the chicks to hatch on. You don't want them slipping on plastic or any slick surface as they can develop splay leg.
They can stay in the incubator after hatch up to about 30 hours, but no more. Unlike chickens, quail need to eat and drink a lot earlier. Have your brooder all ready before they are ready to be transferred from the incubator. Use a red or infra red bulb only. Bobs are highly excitable and white lighting is very excitable to them. It also does not allow for a normal sleep pattern and Bobs are known to kill each other if they are in the least bit cranky. Keep the heat source off to one side. Place a good thermometer directly beneath the lamp on the floor. Start them at 97 degrees. Bobs are slow to mature and need a bit more heat than other quail breeds.
Keep the food and water on the other side of the brooder. Your brooder needs to have 1 square foot per bird. You will want cool spots along the edges and on the other side with the food. Babies cannot regulate their internal temps, so they need to have places to cool off and warm back up. Do not cover the lid of the brooder with anything but a screen or wire.
Cover the bedding with paper towels. You will need to crush the feed for the first week or so with Bobs. They are too tiny to eat standard crumbles.Sprinkle the feed all around on the floor so they can find it. Use chick waterers or jelly jar lids with tiny stones for watering them. They are as small as bumblebees and can drown in standard waterers. You can use the standard waterers but you will need to put marbles in the base so they can't fall in.
When transferring the chicks to the brooder, dip everybody's beak in the water so they know where it is at and get their first sip of water. Place them down in front of the water. Tap with your fingers at the feed so they know where it is as well. Quail are not very smart. In the wild, momma would show them all these things. You can remove the paper towels in a few days when you know they have found where the feed is stored. Dip the beaks a couple times that first day so they know where it is.
Lower the temp by 5 degrees each week for 5 weeks. If at any time you have aggression in your brooder, lower the temp 3 degrees and then work it down from there. Give them things to do. Put some branches in the brooder, a low box with some crushed leaves, alfalfa leaves, chick starter and sprinkle it with some grit or sand. Just keep them amused. A small mirror is fun for them to see more Bobs on the other side. Bobs are known to kill each other in the brooder, so keep a close eye out. Never crowd them in, even as babies.
You can sex them at 12 weeks of age. They are not mature enough to lay until they are 6+ months of age and are fully mature at 1 year old. They mate for life with one bird. The female picks her mate.
Good luck with your Bobs!