What kind of crab is this?

[leo12345]

 

[LiLinka]

Looks like red emerald

 

[blaxsun]

Looks like red emerald

I concur.

 

[Tired]

Agreed. Generally considered somewhat reef-safe, but not to be 100% trusted.

 

[leo12345]

Agreed. Generally considered somewhat reef-safe, but not to be 100% trusted.

Will they try to eat other crabs and fish and will I ever have to feed it? It came in on live rock so I didn’t know I had it until now.

 

[1epauletteshark]

Will they try to eat other crabs and fish and will I ever have to feed it? It came in on live rock so I didn’t know I had it until now.

It shouldn’t eat fish, I don’t think they become aggressive to other crabs and you should probably put a little bit of food for it to eat every once in a while. How big is the tank?

 

[leo12345]

It shouldn’t eat fish, I don’t think they become aggressive to other crabs and you should probably put a little bit of food for it to eat every once in a while. How big is the tank?

75 gallon so it’s hard to target feed

 

[divewsharks]

75 gallon so it’s hard to target feed

They will eat whatever gets down to them, don't have to target feed. They also eat algae.

 

[Tired]

It's pretty unlikely to go after healthy fish, and probably won't go after other inverts, but there's no guarantee with these. Most crabs can't be 100% trusted.

 

[kjkszpj9]

dang, i wish my emerald crab was red. Lucky you.

 

[leo12345]

dang, i wish my emerald crab was red. Lucky you.

You can get one from kp aquatics for 5 bucks

 

[blaxsun]

Will they try to eat other crabs and fish and will I ever have to feed it? It came in on live rock so I didn’t know I had it until now.

No. They're generally harmless towards other livestock. They can sometimes (rarely) go after corals, although I've never experienced this myself. Most times you'll see them amongst corals picking tiny morsels of food from between the polyps.

 

[divewsharks]

You can get one from kp aquatics for 5 bucks

Seahorse savvy has them as well. If I didn’t already have a bunch of emeralds already; would be a nice change of pace /color.

 

[kjkszpj9]

I work at a fish store and we buy from a few places including dejongmarinelife but they dont sell red ones only green.