Hello Maast,
Just wanted to go ahead and start a thread to document my tank on this forum. Not really a build thread as it's already built but I wanted to post some videos of my old tank and my current 215-gallon.
My old 125-gallon system was maintained for almost 3 years with no water changes. Here's an old video of the tank before I shut it down and upgraded to my current 215-gallon.
Here's my current 215-gallon, it's 3 years old but I've been without water changes for the last 2. The video is a little old but I'll update with a newer one in the next month or so. There have been some changes.