 Crazy looking crab showed up today!
I was looking in the tank today and this crab jumped out and scared the hell out of me.
Anyone know what kind it is, is it dangerous. It was eating off the shell of a small hermit, didn't try to eat it though.
The crab is about the size of a silver dollar.
I have no idea how it got in, I've never seen it, and I haven't really made any recent additions to the tank. I highly doubt it was hiding in my colt coral.
It's probably been hiding for months now.
Sorry this is the best pic I could take, he was moving in the shadows. 
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75 G Display, 12 G Refuge, 12 G sump, 1/10 Chiller, Coralife Skimmer, 300 Watts MH 14,000 K, 356 Watts of Actinic PC Lighting, 120 Pounds of Substrate, 109 lbs of Rock.
Corals: Pumping Xenia, colt, Hammer, 4 misc mushroom groups.
Fish: 2 Ocellaris Clowns, Yellow Tang.
Inverts: turbo snails, astrea snails, tiger striped serpent star, sifting star, skunk cleaner shrimp, sally, red ball sponge, 50 or so hermit crabs | 
