I just purchased some Nagomi from mordalphus on here. I believe he did mention that he had one more left but it's probably gone by now. I have yet to put these in but will be doing so in about two weeks when my tank is fully cycled. This pretty much replaces mineral rocks.
On a side note....if you're ordering from Liam, make sure to get the Ebiken EI. It is by far the best baby shrimp food I have ever used.