will emerald crabs eat zoas?

[Akash]

hey everyone. I recently bought a emerald crab to take care of a small bubble algae problem in my tank, but started to wonder if it would harm any coral. I saw some people saying they might eat zoas so was wondering if anyone had experiences with them. thanks!


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[ActiveAngel]

Never trust a crab

 

[Akash]

ok ok. i’ll try and get it out once it’s done with its job. thanks


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[Reefer-Madness]

I once had one emerald crab cause about 300 dollars in damage in just a couple of nights before I caught him. He was ripping my coral open to get to the food inside and ended up killing a large lobo and some acans. I’m don’t trust them at all anymore.

 

[Akash]

oh wow. i’ll try to get it to somebody who needs it


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[Dmac]

I tried two, they both nipped at soft corals. I haven't tried a third

 

[aTadb1t]

I only keep cheap corals but my emerald crabs leave my zoos alone. I have a little guy and a big one. Not really sure what they eat cause my bubble algae is untouched. He hangs out under my zoas but haven’t seen any missing


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[Tanster2]

I never had them nip corals. IMO they are eating algae and scraps that the corals have captured often times. Apparently these guys behave differently for everyone though.

 

[hzheng33]

they have minds of their own. that's why they're reef safe with caution. you never know if or when your crab will turn rogue on you, just like the angel fish or the trigger fish in the hobby.

 

[Akash]

thanks everyone. i’ll definitely be cautious


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