very cool! I have some scraps laying around from my 180 stand build and might have to do something similar. Heading to petco soon to get a 20L to use as a qt.
Just to update, my neighbor kids came over to take a peek at the main display and saw the little pico tank and liked it more than I did so I gave it to them.
Not really a big deal because I have about three more small tanks in the garage that I can always do another build with.
This was just a past time prototype anyway now we can make improvements on the design.