Bonding rocks together

[bravanc]

i used the acrylic rod idea myself. i tried two ways one with the rod drilled into a paver base and expoxied and another with the rod drilled into base rock. I used JB water weld

here are my examples but the final designed is in the tank.

 

[IrishRonnie13]

Acrylic rods falter after several years due to water elements, some people have gone with fiber glass rods....