Side view #2 the other end. Excuse the dirty top. Was excited to show you guys!

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!

testing to make sure it's working without leaks

Drilled three holes. tubes inserted for overflow, center top hole for inlet of water

The finished product

Window planter from home depot

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

This is the tank I want to replicate.

Here is the new tank that I am setting up. As well as pics of the stand i just built, any thoughts on the stand are welcome

Self Built 30 gallon Tank