In one sentence, describe what the following article is about:

Ask around. Sometimes pet shops have services where you pay them to come over and feed your fish. Unknown people have full access to your house. This makes it important that the person you choose is properly vetted or is known to you. If you do not feel comfortable with strangers in your house, ask a family member or a friend. Alternatively, a pet sitting service whose clients have been police verified can be an alternative, although more costly. Tell them everything they need to know, especially about how much to feed, and also leave a written instruction sheet for their reference. If you can't find anyone at all to take care of your fish, it would be best not to leave. If you do, you are taking extreme risks, and it is likely your fish won't survive.

Summary:
Get somebody to take care of your fish. Talk to your fish-sitter about your fish before you leave.