Pistol/snapping shrimp id

[somechinesereefer]

Trying to figure out this chonk of a pistol shrimp. It's kind of taken over the whole tank, burrowing from front to back and left to right, a 90 gallon. It's fearless now too and even ventures sometimes to the middle level of the tank on the rocks during feeding time.

I fear it's outcompeting my mandarin and any other pistol shrimp I try to introduce. I'd estimate at least an inch and a half long from head to tail. I inherited the tank from another reefer.

 

[Sharkbait19]

Kinda looks like a Japanese red pistol.

 

[DaJMasta]

Agree with the Alpheus bisincisus ID, and while they will bicker with other shrimp, I wouldn't expect them to 'outcompete' a mandarin. These shrimp don't necessarily go for the same food as the normal copepods and things mandarins do - not that they can't, but that they tend to get scraps of what's fed to the tank and not go around for the really small stuff. I've got a couple mandarins in a tank with at least one pistol shrimp of a different kind and I both haven't seen the pistol come out in the open much to eat and haven't seen the mandarins chased off or trying to get away from the shrimp - they seem much more concerned with other inverts than they do fish, but they do sometimes snap at fish.

 

[Fishfreak2009]

I love these guys. One of my favorite pistols. They sometimes hunt small hermits, but are normally harmless with everything else