body and said distal retainer 64 a plurality of a weep holes 62 is provided through said horizontal surface fig3 is a longitudinal cross sectional view of the cluster 82 of the telescopic modules 10 the cluster 82 is comprised of the primary module 72 and a plurality of the secondary modules 76 centered within the cluster 82 of a plurality of predetermined telescopic modules 10 is a primary module 72 acting as a hub the primary module 72 is surrounded geometrically by a plurality of a secondary modules 76 all of the telescopic modules 10 are interconnected with a plurality of a fastener 40 u2033 at each of the interface 78 locations the fastener 40 u2033 is introduced through the bore 80 located in the cylindrical wall 44 of the distal retainer 64 thereto communicating with the bore 80 located at the distal end of the stationary lower body 14 thereto communicating with the bore 80 located in the collar 18 passing through the bore 80 of the collar 18 of the adjoining telescopic module 10 and communicating with the bore 80 of the adjoining stationary lower body 14 and communicating with the bore 80 of the cylindrical wall 44 of the adjoining distal retainer 64 thereby mechanically attaching the adjoining telescopic module 10 the adjoining plurality of the cluster 82 of the telescopic modules 10 creates a building block for a reef domain 86 the cluster 82 provides for establishing a means for having said.