Best Seller | Carbon for QuietFlow LED PRO Filter 30/50, .18 LB Let's get quacky about Aqueon Carbon for QuietFlow LED PRO Filter 30/50! These specialty filter pads are the perfect solution to common water issues. With three varieties available - Ammonia Reducing, Carbon, and Phosphate Remover - you can customize... ... more Carbon for QuietFlow LED PRO Filter 30/50, .18 LB Let's get quacky about Aqueon Carbon for QuietFlow LED PRO Filter 30/50! These specialty filter pads are the perfect solution to common water issues. With three varieties available - Ammonia Reducing, Carbon, and Phosphate Remover - you can customize... Petco.com | | $7.99 go to store |