Swai the latest cheap fish being sold

The description I found on line says it is a river catfish of sorts. My question is what does it eat? It is aqua-farmed in Southeast Asia. Pens under the floating houses? I don't know if I would care to eat the imported.

Everything I have read about this fish advises not to eat it. Here is a link for some information, FWIW
http://www.dietmindspirit.org/2008/01/30/why-you-shouldnt-eat-this-fish-pangas-pangasius-vietnamese-river-cobbler-white-catfish-gray-sole/
Best bet is to check with a trusted fish monger, like I did.

[Jenise]

I had never even heard of this fish until a friend ordered it in the Finger Lakes two weeks ago. Her dish was called fish and chips, though the chips were this local oddity called salt potatoes (which is worthy of another thread). It was odd looking: a single filet about 8" long, tapered and nearly flat toward the tail end but unusually thick toward the head end for a filet that short, over an inch. She wasn't wowed by it, but that could have been the prep or her disappointment in the potatoes, which she'd claimed to be the impetus for that order.

I noticed this for the first time in a large supermarket store that I shop at. Glad I read this thread so I can approach with caution.

Tim