Sep 5, 2017 #1 Darwin stinton Active Member View Badges Joined Mar 2, 2017 Messages 103 Reaction score 27 Location Minneapolis, MN Rating - 0% 0 0 0 I was wondering, how many lbs of rock does it take to displace X amount of water?
Sep 5, 2017 #2 F Flippers4pups Fins up since 1993 View Badges Excellence Award Reef Tank 365 Article Contributor Reef Squad Emeritus Hospitality Award Joined Jun 21, 2016 Messages 18,499 Reaction score 60,653 Location Lake Saint Louis, Mo Rating - 0% 0 0 0 Depends on how dense the rock is.
