The biOrb Coral Sculptures are designed exclusively for biOrb by the artist, Samuel Baker, this branching coral sculpture with its pale pink and opalescent accents would be a lovely addition to your biOrb. Simply slide over the bubble tube in the biOrb. It is easy to fit and remove. The medium sculpture is suitable for 8 gallon / 30 liter biOrbs and larger and is 5.91 inches / 15cm tall. Size: M.