PPROBLEM TO BE SOLVED: To provide a substrate for easy settling and growth of coral. PSOLUTION: The coral settling substrate is formed from coral settling blocks that are concrete block bodies, have their top surfaces formed as inclined surfaces, inclined grooves in parallel with the inclination directions of the inclined surfaces, and support rods arranged on the inclined surface, and organism living blocks. PCOPYRIGHT: (C)2011,JPO&INPIT
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