Heating Cooling Units

How long will a cycling tank last without an air pump?

I'm one week into my cycle. Ammonia: 0.25ppm. Nitrites: 0.1 ppm. Today, my air pump stopped working. I know the bacteria are cultured aerobically, and needs oxygen to survive. However, I can having an air pump tomorrow afternoon. If I leave my tank unventilated until then, how do you damage it will do? forgot to add: it is a tank of 5 gallons of fresh water.

The air pump has little or no impact on your cycle. Surface provides O2. A filter feeding O2 provides the surface runoff. The bubbles of air pump does not add air to water. They ripple on the surface a little. Except when implementing a filter, air pumps are purely decorative.

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