1. Oxygen: This is the defining characteristic of aerobic bacteria. They require oxygen for cellular respiration, the process of generating energy from food.

2. Nutrients: Like all living organisms, aerobic bacteria need a source of nutrients to build their cells and carry out their metabolic processes. These nutrients can include:

* Carbon: For building organic molecules. They can obtain carbon from sugars, organic acids, or even carbon dioxide.

* Nitrogen: For building proteins and nucleic acids. They can obtain nitrogen from nitrates, nitrites, ammonia, or even directly from the air.

* Phosphorus: For building DNA, RNA, and ATP. They obtain phosphorus from phosphates.

* Sulfur: For building proteins and other molecules. They obtain sulfur from sulfates.

* Minerals: Trace amounts of various minerals like potassium, magnesium, calcium, iron, etc., are essential for different enzymatic reactions.

3. Water: Water is essential for all biological processes, including nutrient uptake and waste removal.

4. Optimal temperature: Each species of bacteria has an optimal temperature range for growth. Too high or too low a temperature can inhibit their growth or even kill them.

5. pH: Like temperature, each species has an optimal pH range for growth. Most aerobic bacteria thrive in a neutral pH range (around 7).

6. Sometimes, specific growth factors: Some bacteria require specific organic molecules that they cannot synthesize themselves. These can be vitamins, amino acids, or other essential compounds.

7. Absence of toxic compounds: Many chemicals, such as disinfectants or heavy metals, can be toxic to aerobic bacteria and inhibit their growth.

It's important to note: The specific requirements can vary depending on the type of aerobic bacteria. Some are more specialized and have specific needs, while others are more generalist and can tolerate a wider range of conditions.