are they safe i don't want any west nile in my tankMost lfs don't sell live food, however, you can find things like mosquito larvae in your yard easy, These are perhaps the best food available since most other things are mostly fry food. All you need to do is set out a deep pot or other container, fill it up with water, and wait for mosquitos. Id you have mosquitos. Lucky you if you don't.
You can always buy frozen food like bloodworms, brineshrimp, daphnia, etc.