how long to wait before adding another fish?

[hyrumbradshaw]

How long does it take for the bacteria to build before I can add another fish???

[dileggi]

It does depend on what else is in the tank. But, normally, after I add a fish, I'll monitor the water for a week or two. Once they're stable again, if any change at all, I'll add my next fish. Typically, I usally wait two weeks, but I have a smaller tank.