Hi there,
I have the opportunity to regularly procure some crayfish from a guy who has them in a private reservoir here in Oregon, and I was hoping to get a few on and off to feed to a Nile. This means they're 'wild caught' even if the reservoir doesn't get strange run-off into it, and that brings up a few questions.

He said they test for water quality once per week- should I get any sort of tests run on the food animals themselves if I'm going to buy them regularly?
Should they be frozen and thawed before use to kill any bacteria/parasites, or should they be okay to feed fresh? I worry about environmental contaminants, but the area he is in has extremely good air/water quality, and no obvious sources of industrial pollution.

Basically, just wondering if this is a good idea or not, or just about equal with feeding store-bought shrimp or fish, or something like that.

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