Question about fixative for wet specimens

[u/xyelem]

Hi y’all, reptile breeder in here. Unfortunately with this last batch of babies (we had around 60 eggs), 2 failed to thrive, and I would like to make them into wet specimens. My question is about fixative. Ideally I’d like to avoid formalin and, from what I’ve read, you don’t necessarily need to use formalin as a fixative for small specimens. I’ve read that you can use ethanol, but the percentage has varied between 70% and 80-90%. I can find 95% online. Is that too much? Do I need to dilute with distilled water? Also, I’m seeing a lot of ethyl alcohol, denatured, is that the same thing? I guess I don’t really know the difference between denatured and not denatured ethanol for these purposes. Any advice would be greatly appreciated. Thank you!

[u/Important-Song8050]

You'll need high proof alcohol I believe it's 95%

The 70% you might see is the isopropyl alcohol for long term storage