For a fun and functional addition to your aquarium, there are several aerator decorations available.
Things to Consider:
Hiding Places -- Fish love having decor in their tank where they can hide and feel safe.
Not too much -- With so many decorations out there, you may be tempted to purchase several, but don't over do it. A few nice pieces that can be evenly spaced in your tank are perfect.
Solid Construction -- Select aquarium decorations that are solid and will not break.