How to Turn a Sponge Filter Into a Moving Bed Filter!

ONLINE STORE - https://keepingfishsimple.com/ Visit my store at 3/12 Abercrombie Street Rocklea 4106 Instagram ↠ https://www.instagram.com/keepingfishsimple Ever wondered if you could turn a simple sponge filter into a moving bed filter? In this video, I show you a super easy DIY sponge filter hack using nothing more than an old water bottle and some bio media. This simple upgrade massively increases biological filtration while keeping everything cheap, quiet, and fish-safe. Perfect for fish rooms, breeding tanks, grow-out tanks, shrimp tanks, or anyone wanting better filtration without spending big money.