Would you happen to remember what species were kept here when you visited? Its interesting that this little bug/reptile zoo is free. I do know they keep some exotics currently as they added an Emerald Tree Skink recently, according to their Facebook.
@SusScrofa This place is very small and I didn't keep a detailed species list from my visit, but I would recommend anyone in the area to drop by for a quick tour. There's a lot of cool stuff for sale in the shop section, plus as you point out there's zero admission fee.