Ladipyg. My first tank was an acrylic from Old Town Aquarium in the 1980s (you know it I'm sure). I still have it. Bought this one about a half year ago, and how to care for the surface has been a major concern. I can't tell you how glad I am for this piece of advice and other advice you've posted over the past several months. The magic eraser is on the shopping list.
Many thanks. Steve
Many thanks. Steve