Some tabletop fish-themed items are sold with a “Decorative Use Only — Not for Food or Drink Service” label. That label indicates the piece is intended for display only and should not be used to serve food or beverages—check the product listing or packaging before using an item as serveware.
Common shapes include round, novelty (fish-shaped), and rectangular styles. Many of these pieces are described for tabletop placement and other small-display locations.
Yes. One item described is a small resin rockery ornament labeled non-toxic and intended for aquariums, suitable for use with fish and turtles.