S Steeevo66 Experienced Reefer Manhattan Reefs Location Staten Island, New York Rating - 100% 3 0 0 Nov 16, 2014 #1 Trying to remember where I saw a permanent (fixed) substrate, like sand or crushed coral that is mixed with a hardening agent so that the sand or coral doesn't move around. Anyone?
Trying to remember where I saw a permanent (fixed) substrate, like sand or crushed coral that is mixed with a hardening agent so that the sand or coral doesn't move around. Anyone?