FISH REEF

PROBLEM TO BE SOLVED: To obtain a tough fish reef compatible with the scale of sites to be set on, excellent in assemblability, by mutually connecting plural molded forms each having a specified length with both ends opened through a pair of square connective plates having connecting holes bored at the arranging intervals. SOLUTION: Plural molded forms 1 each having a specified length with at least both ends opened are regularly and superposedly arranged and mutually connected through a pair of square connective plates 2 having connective holes 3 bored at the arranging intervals. It us preferable that bolt-fixing nuts 5 be inserted into the four corner sites of each of the square connective plates 2 so as to mutually connect both longitudinally and transversely via connective brackets the square connective plates 2 adjacent to each other.