Total of more than 2 million gallons of water are pumped, filtered and re-pumped within the Aquarium's nearly 200 water systems. The average bathtub holds 50 gallons of water. How many bathtubs could the water in the Aquarium fill?

To find out how many bathtubs the water in the Aquarium could fill, we need to divide the total amount of water in the Aquarium by the amount of water a bathtub can hold. Here's how you can calculate it:

Step 1: Convert the total water volume in the Aquarium to gallons.
The total water volume in the Aquarium is given as more than 2 million gallons. We can assume it as 2,000,000 gallons for simplicity.

Step 2: Determine the number of bathtubs the water in the Aquarium could fill.
Divide the total water volume in the Aquarium by the amount of water a single bathtub can hold, which is 50 gallons.

So, the calculation would be:
Number of bathtubs = Total water volume in the Aquarium / Amount of water a single bathtub can hold.

Number of bathtubs = 2,000,000 gallons / 50 gallons.

Now, let's do the math:
Number of bathtubs = 40,000 bathtubs.

Therefore, the water in the Aquarium could fill approximately 40,000 bathtubs.