Lithops seedlings

I bought a pack of lithops seeds on eBay and planted them on Saturday. Should I see germination this quickly (Tuesday)? I'm surprised at the size of them too, given how small the seeds were, but they do look like the lithops seedling photos I found online.

i never had lithops seeds but i did have many other suculents and cacti seeds and some of them they come up in a day or 2....realy fast