I've got to say that these tanks look too good to be true. They look like they were set up for the photo shoot and then taken down. In my opinion they are far too crowded with fish to work for any length of time, and they are far too clean for to have been set up and running for any length of time. Ever notice how in a long term tank there are just some places that you can't get to will get over grown with algae and other stuff?