Place selling healthy harlequin shrimp

Hi guys,

Would like to check if anyone here knows of a place that contantly stocks up or recently seen Halequin shrimps sold and that the shrimps are in good health? It will help if rough location can be given also =D

Appreciate any help as its abit hard to find that species in hougang area and that going down to C328 twice without them stocking up is quite frustrating.