What agar do we use in this project?

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We're working on an investigatory project that tests the effectiveness of solar water disinfection. Here's what we planned to do:

1. Get tap or toilet water in a bottle
2. Take a small sample of it and put it on agar or growth medium
3. Let the bottle undergo solar water disinfection
4. Take a new sample of the water that has undergone solar water disinfection and put it on agar or growth medium

The thing is, we don't know what agar to use. The different types of agar got us confused.

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Science buddies has an article for you to find what type of agar you should use: https://www.sciencebuddies.org/science- ... robes-agar

Hope this helps.