Sickly Looking Fish

About 1c on Beta · Horde (5 hours ago), 1s 98c on Beta · Alliance (24 hours ago), and 2c on Beta · Horde (1 day ago), from player scans. A vendor pays 1c, so the auction house pays 1× more.

No. It is in Classic Era too, with the same item level, vendor price and stack size.

Sell it to a vendor. A stack of 20 brings 20c there — more than the auction house nets after its 5% cut.