Re: Gravel, Coral, no gravel? DBTerrapin / Forums / Diamondback Terrapins / Gravel, Coral, no gravel? / Re: Gravel, Coral, no gravel? modelgrafx@aol.com April 5, 2001 at 10:17 pm #14780 Vincent, I use pea sized gravel for my baby tank but none for my adults. Vickie Settings