Some beers make little to no krausen, or it falls quickly. Others make giant, ugly krausens. It depends on the recipe and the yeast.
Bubbling is a good sign that you have fermentation (though lack of bubbling does not mean that you don't).
Leave it alone. The yeast know how to make beer; let them. Wait two weeks, then take a hydrometer reading. Wait two days and take another. If they match, you are ready to rack to secondary or bottling bucket.
- blogging about making my own beer and raising a lot of kids.
Check out the priming sugar calculator
and the beer calorie calculator
Fermenting: American brown ale
Bottled: big Irish red ale, Thundersmoke brown ale (Yorkshire brown), Belgian golden strong ale, imperial nut brown ale