Emarald crab question?

[tri_pod_rod]

hey everyone just wondering does anyone know if emarald crabs eat sps if so tell me right away so i can boot his a** out:badgrin:

 

[RejectReefer]

If its truly a emerald, your all good...... the few I have sure do knock over anything not glued down though.

 

[returnofsid]

Emerald Crabs are great and reef safe!! I have several in my 75. My largest one likes to get up on my frag rack and clean algae from all the frag plugs. Unfortunately, sometimes that means tipping them over to get at algae on the bottom...lol. The first time I saw this, I was a little concerned that it might be eating polyps, so I watched it very closely. Nope, just algae!! Great lil' guy!!

 

[Myteemouse]

I still laugh every time I see those pics of him "scrubing" your frags!

 

[returnofsid]

He is quite the character. Unfortunately, we haven't seen him in a few days and are wondering if he's passed on. Hoping not!!

 

[Myteemouse]

I only see mine about once a week!
he's tricky but mine is actually redish color!

 

[returnofsid]

That would be a Red Mithrax. Emerald Crabs are Green Mithrax...so same family...very similar. Back to Rod's original question...I do know people who have witnessed them munching on Zoanthids, though I believe it's rare. Mine never bothers mine, except to tick them off when they walk across them, in their everlasting hunt for algae.

 

[Myteemouse]

Right thats what I found out!
A red mithrix!
It was an acident! I asked the guy at BR to get me one emerld and he baged a red one!
I should have looked at the bag first but who really cares at this point!
It was at there sale and it was PACKED there!
I had to get out of there!

 

[Poseidon]

In my opinion, NO CRAB is 100% reef safe. Mythrax crabs are no exception, I have read posts where people have witnessed then killing and eating FISH once they are full grown.

 

[returnofsid]

I totally agree. Even the most "reef safe" of crabs can cause problems. They are all opportunistic feeders and if they happen upon an injured or sleeping fish and decide it might make a good meal, they're apt to try.

 

[alki]

Dude those are some great pics.