Started my first brew on the 29th. I started brewing a Austin Home-brew Porter on the 29th. It started bubbling nicely after about 12 hours. When I looked in on it today the bubbling has slowed way down is this normal?
It is probably fine. Usually the most vigorus fermentation only lasts a few days and then it slows down. Give it a few weeks and then check the gravity if it is close to the recipe and stays that way for a few days you will know it is done.