Nov 7, 2017 #1 ReefinVic New Member View Badges Joined Sep 19, 2017 Messages 16 Reaction score 4 Rating - 0% 0 0 0 Is this a black emerald crab or gorilla crab? If it is black emerald, is it reef safe?
Nov 7, 2017 #2 S-t-r-e-t-c-h Well-Known Member View Badges Excellence Award Reef Squad Emeritus Ocala Reef Club Member Joined Aug 28, 2017 Messages 791 Reaction score 1,906 Location Gainesville, FL Rating - 0% 0 0 0 Definitely a mithrax sp. crab (a kind of emerald crab); generally safe, but any crab can potentially be an issue.
Definitely a mithrax sp. crab (a kind of emerald crab); generally safe, but any crab can potentially be an issue.
Nov 7, 2017 #3 Palyzoa Well-Known Member View Badges Excellence Award Joined May 25, 2017 Messages 846 Reaction score 1,261 Location Knoxville Rating - 0% 0 0 0 Looks like an emerald crab. Good algae eater but some people report them eating corals.
Nov 7, 2017 #4 ecdragonz Active Member View Badges Joined Apr 18, 2012 Messages 136 Reaction score 44 Location New York Rating - 0% 0 0 0 Just have to watch them.I had them eating my zoa.
Nov 8, 2017 #5 Michael Cronmiller Active Member View Badges Joined Apr 11, 2017 Messages 449 Reaction score 570 Location Pompano beach, Fl Rating - 0% 0 0 0 Had one eat up a chalice, and eat up some zoa's before I could catch him