I needed a place to securely mount my auto-feeder before going on vacation and wasn't happy just velcroing it directly to the tank brace. Threw this together to fit over the brace and then be zip-tied to the brace.
NOTE that those tank braces are structural and not meant to be weight-bearing!! I'm using this to hold a small auto-feeder. Please don't print some of these and think that you can stack a bunch of stuff on them.
Flip the .stl so you don't have to use supports. Use whatever infill you want. Remember PETG is water-safe, so I wouldn't use PLA for this.