Here is my idea is to make it the same thing as the vivariums except that would be called aquariums and of course to put water and the other party for the plumbing, pipes etc .. And to put in but down like its visitors do not see them and neither do we and for the window or the funds it would be to put these drawings of other marine animals or bubbles or corals or shipwrecks or treasures or beaches would be too much and i know that its takes time but are ideas. Tell me what do you think?