Was building DIY caves for my fish and used rocks I bought at a local Michael Craft Store. The girl said there was no lacquer on them. Now I'm paranoid with my caves built. The brand is "Panacea".
They seem to be made in China and I know things aren't always as they seem coming from China.
I googled the brand "Panacea" and they seem to be sold everywhere and they claim they are "great for aquariums". Has anyone ever used "panacea" rocks in their tanks?