Aqua One Log With Holes Aquarium Fish Tank Decoration Ornament - 14.5 x 7 x 7.5cm

Yes, the materials are non-toxic and the holes are generally smooth, making it safe for goldfish provided the fish size allows them to swim through without getting stuck.

The manufacturer specifies this for coldwater and freshwater tropical use; saltwater chemistry may degrade the finish or materials over time.

No, the ornament is designed to sit flat on the substrate. However, you can bury the base slightly in sand or gravel for extra stability.

It is made of durable materials, but some minor fading can occur after years of heavy UV exposure or high-intensity aquarium lighting.

Yes, if the air stone is small enough, you can place it inside the log to create a bubble effect coming out of the hollow ends.

The ornament may have air trapped inside. Submerge it at an angle and tilt it under the water to allow all air bubbles to escape from the hollow sections.

This is normal in high-light tanks. Gently remove the ornament during maintenance and scrub with a soft brush, or relocate the ornament to a shaded area of the tank.