Side view #one showing the tubing. The powerhead I have has a large opening so the size of the tube is pretty big. Was not able to drill it to the side of the planter which would've been ideal. But since it's clear, I can hide it easily without too much notice!
Made this out of extra equipment at work (research lab) and a box of clearance eheim substrate with a Whisper air pump.
It's a secondary filter for my 5.5 gal Betta tank
He has fin rot so I'm doing everything I can to get rid of it and him healed. 50% water changes and salt