Thanks, but I already know exactly what decorations I'll be getting. Here where I live (and of course Ebay) has a wide selection of Ancient Greek/Roman themed aquarium decorations. What I'm looking for is truly unique, I think. I very much doubt that somebody has a home-made inscription of Aristophanes's 'Frogs' in their aquarium!
I need help with the slate upon which I will write/carve the text. This material in question needs to be safe and clean for my aquarium. I was hoping that I would find help here on that particular issue.