Make your aquarium a real highlight with decoration that simultaneously conceals the filter! The biOrb pebble sets are naturally durable, robust and safe: With these sets no substances whatsoever are released into the water, guaranteed. The biOrb seashells and sea stars have a particularly natural effect; the meticulous crafting is deceptively realistic. A note for fans of easy cleaning and maintenance: All biOrb decorative items are robust and easy to care for. See for yourself!