Question

[marinefish]

are emeral crabs aggressive? are they reef safe? i have a gree emeral crab for alage cleaning. its about half an inch in size. can anyone give me info on this crab? thanks you

 

[twoods71]

I had 2 at one time and had no problems with either one of them in my 55 reef.
I have read many posts on this board however from people who say they have had big problems with them.
I guess it is a hit or miss thing.

 

[sistrmary]

I've got about six of them in the same tank, and they're all fine...they vary greatly in size. I think it depends on the amount of food you have available to them. Any animal (even people) will become territorial and fight if there isn't enough food.

 

[iechy]

I have two and one is walking the line right now. He keeps picking at my Star Polyps and if he does them any damage he is going to be a goner. The other stays away and only eats junk off theLR. As I've seen on here many times I guess it just depends on the one you get as to what he likes to eat.

 

[blutang]

I've always heard that they are great in reefs and really effective at algae removal.

 

[bang guy]

All crabs are Omnivores. You can predict what most of them will do but there's not bets on a crab in a captive system that's hungry.

 

[blutang]

Well, scarlet legs are safe aren't they?