Shaking/ rocking aquascape??

[SpencerT82]

Hey, I recently built this aquascape a few days ago. For the bottom rock I used a Marco rock foundation rock you can’t see it since it’s under the reborn media. Visually the rock was flat since it was cut if you look up a picture of Marco rock foundation rock it will pop up. I put the rock scape in straight on the glass. Originally I had put sand in the tank after the aqua scape and the aquascape didn’t move at all due to the weight and small size of the grains. However I decided to change to reborn media and now the rock has a small rock when you out pressure on it. It’s roughly 1/4 inch of back and forth rock. It is due to the Marco foundation rock not being 100% flat there is nothing under the rock causing it. Does anybody have any suggestions on what I could do to stop the rocking?

 

[Jekyl]

Shim it

 

[SpencerT82]

Shim it

With what?

 

[Glenner’sreef]

Can you glue a piece of egg crate to the bottom of the rock? Then cover ec. with gravel?

 

[Jekyl]

With what?

Depends on how big it needs to be. Just be sure to glue it to the rock so that snails don't pull it out.

 

[Jekyl]

You could even just shove some reef putty in there. Same stuff used to attach frags.