Ah, what would we do without LiveJournal? Taxine posts a query on B0st0n LiveJournal:
Okay, so does anyone know where(or if) I can buy a formalin (formaldehyde) solution locally? I'm not a funeral director, scientist, or student, I'm just interested in preserving a pet frog who died of old age.
Naturally, helpful LJers suggest alternatives to the powerful chemical, including brandy and freezing - although Morbidqua advises against the latter, because of the possibility of power outages or changes of address:
I froze my favorite pet fish years ago in my Allston apartment. It's NOT a good way to preserve a dead pet. Go for Rum or one of the alcohol based or resin based preservation methods.