[Histonet] Fixing whole testes

[jane24348794 <@t> hushmail.com]

I'm trying to preserve whole sheep testes, and I'm looking for some advice on fixing time. I'm using 10% neutral buffered formalin, and they've been submerged for about a week. Should I continue fixing, or transfer to ethanol?  I have no idea how long it needs.

I'm trying to do long term preservation for anatomical models. I'm very new at this, and there are surprisingly few beginner resources out there. Can anyone advise me?

Thanks,
Jane