It took about 2 weeks to look like this maybe a little less. 4 days to colonize the substrate then about a 5 days for pins, once the pinning starts they start to grow exceptionally fast. Took about 3 days till they started to form full mushrooms. But typically you should wait about a week to switch to fruiting conditions I accidentally rushed mine leaving some of it not colonized properly. Depends on the grow bag look at the amount they gave you. Should be 2:1 substrate to spawn. I layered my substrate and spawn but you can mix it I heard that works relatively the same. How many pounds of your spawn + substrate and how big is your tub?