Clams?

[GreenSpottedPuffer]

When I left the hobby about 4-5 years ago I used to see clams for sale a lot. Since I have been back for about 5-6 months...I have never seen a single one for sale. I really only visit one LFS regularly though (J&L) so maybe that is part of the reason. I'm sure the export ban from Indonesia ( I assume it also bans clams) is another but that happened months after I was back in the hobby.

Am I just really unlucky and missing them at shops or is there a reason?