MacDracor
Aquarium Advice Addict
Keep it in. Want ammonia to reach at least 4 ppm.
Like she said, keep it in. As a general rule, the tank is considered completely cycled when you can have ammonia go from 4 to 0 in one day. So, some people will actually dose the tank to 4 ppm when they think it is done, and then see how fast it drops. I admit, I'm a bit lazy for that. I add a bunch of a rock, a piece of shrimp, and a bottle of bacteria, and see how it's doing a week later.