To clean or not to clean?

I am house sitting till the end of August for a great family that is traveling Colorado. They are getting ready to put their house on the market because they hope to eventually move to CO and therefore I have been helping as a side job. Today little Lilly, age 10, called to check on her fish. Last time they went on vacation one died and she was devastated and so I reassured her that all was well. I cleaned the bowl, fed the fish, and sent her a picture to prove it! See... ;o)