redfisher1139
Aquarium Advice Freak
I was thinking of replacing, a little at a time, my crushed coral substrate, which I have been told from many sources harbors nitrates like a homeless shelter, with RO rinsed, silicate free playsand. If I did this, would I need to add a ph buffer to keep my ph up, or would the live rock be calcerous enough to keep it up? My lr is mostly haitian lettuce rock.