no bubbles after a week

i'm new to homebrewing ,i'm on my third batch and i decide to try a 90 minute clone. the fermintation at first was crazy lots of foam and constant bubbles for two days then was normal. now after a week no bubbles at all. what happened? should i add more sugar and what kind? or is this normal.

 

After a week it's normal to see no, or infrequent, bubbling.

 

It's done. Or at least slowed way down. Let it sit another 2 weeks and bottle.

 

OP: Keep in mind that it very well could be ready to bottle in less than two weeks, but it wouldn't hurt to just leave it for 2 weeks before bottling.

 

If you have a constant gravity reading across a couple days and you are close to your estimated FG the fermentation is done. As has been argued on this forum bubbles do not always mean fermentation is happening or completed. Taking gravity readings is a surefire way for determining that.

 

Perfectly normal. Some fermentations last for days and days, other are over in a couple of days, max.

The hydrometer is your friend; it can tell you if gravity is stable (and therefore, if fermenation is done). The airlock is a valvue for letting out excess gas - nothing more.

 

thanks for the advice really glad there are people out there that can help
till next time
cheers