Petco
$20 for next day shipping apparently means 3 days, and leads to fin rot - Tetra Whisper 20i Internal Power Filter and Pondcare Pond Salt
So I ordered this product late Thursday night when I discovered that my fish's tail was breaking in hopes of preventing him from getting fin rot, I drop $20 on next day shipping figuring it would be processed Friday and be here Saturday. But apparently next day shipping really means 3 day shipping. ...