Have a new baby Biota Yellow Tang coming on Wednesday. When I say baby the only ones they had in stock were 1.25". I wanted to protect this little guy after QT. This 200mm x 165mm x165mm box would be over $100 on Amazon. Too much, so I made my own. I had some scrap acrylic, 60w Laser and mediocre CAD skills. Hope the little guy will like it!