emerald crabs
- Thread starter rbrockm1
- Start date
the j.o.p.
Member
mine would walk all over my zoa's and knock over frags. so i banished him to his own 1 gal. tank.
the j.o.p.
Member
mine is the biggest i've seen. about 1 1/2 inches across his back.
frankthetank
Active Member
Yea, emeralds are strictly algae eaters. Shouldn't bother anything... though I'll agree with another poster, they do knock things over as they get bigger. One keeps knocking my 1 pound rock with mushrooms over... makes me so mad!!!
But truly, they are great additions to a tank.
But truly, they are great additions to a tank.
frankthetank
Active Member
Originally Posted by shogun323
I believe Emeralds are opportunistic and do not solely eat algae. I have wrestled a few fish carcasses away from mine before. Mine never actually killed any fish, but they are on a dead fish like a fat kid on a piece of cake!!!!
I have never witnessed an emerald kill a fish. I have never heard of a emerald killing a fish. I don't think they would just sit there and let a fish or something attack them though. Now if it was dead, I'm quite certain an emerald would clean up the mess. My emerald will catch frozen mysis that I feed the fishes. But I doubt very seriously an emerald would kill a fish or a coral for food, unless you were starving him.
I believe Emeralds are opportunistic and do not solely eat algae. I have wrestled a few fish carcasses away from mine before. Mine never actually killed any fish, but they are on a dead fish like a fat kid on a piece of cake!!!!
I have never witnessed an emerald kill a fish. I have never heard of a emerald killing a fish. I don't think they would just sit there and let a fish or something attack them though. Now if it was dead, I'm quite certain an emerald would clean up the mess. My emerald will catch frozen mysis that I feed the fishes. But I doubt very seriously an emerald would kill a fish or a coral for food, unless you were starving him.
the j.o.p.
Member
here is mine saying " whats up!!!!!!!!!"
reefreak29
Active Member
i have 10 in my tank
ophiura
Active Member
Like any crabs,IMO they are opportunistic - they can and WILL eat other things, including corals (typically soft corals). This happens primarily when large. I couldn't figure out what was eating my toadstool until I found the largest emerald snacking on it after lights out.
flabeano
Member
YES - they can knock over things - and I have seen them lift items MUCH bigger than they are - BUT I believe they serve a mighty purpose. I have never seen them destroy anything of value - and only see them munching away at hair algae and leftover foods.
I consider them cleaners and they are doing thier job. Have only lost (1) in 4 months - and it was a monster. Never bothered fish or corals.
Just be sure they are getting food besides algae - and they can even provide entertainment at times.
I consider them cleaners and they are doing thier job. Have only lost (1) in 4 months - and it was a monster. Never bothered fish or corals.
Just be sure they are getting food besides algae - and they can even provide entertainment at times.
big
Active Member
I think I posted these a while back after first getting Emerald Crabs.. First day in the tank, this guy went after this Outa-bubble frag.
Have since watch my two closely to see if any more such undesirable behavior. Only once or twice have they ever again done it and always the same types of corals........ Warren
Have since watch my two closely to see if any more such undesirable behavior. Only once or twice have they ever again done it and always the same types of corals........ Warren
