Adorable fish, copper antique looking with patina. Sold in a small school of 10. Size is 16mm x 8mm. Stick a bead or small square of tile to the back if you want to raise it up in your mosaic, or Stick on tiles after grouting. I wouldn't grout over these, you'll lose that lovely patina.
Let your materials inspire you, play with your tesserae. Karen Baker.