pistol shrimp noise question

[Tabasco1]

I am in the process of trapping out crabs and such from my lr before it goes into the display tank.

I have not seen a pistol shrimp, but every once in a while I hear a popping noise from the bin area that the lr is curing in. I didn't really notice it at first, but now I am wondering if that could possibly be a pistol shrimp. From what I have read if you have one, you "know". How often do the shrim make that noise?

 

[bige]

They make that noise couple times a day. Usually multiple pops in a row. I own one and he pops all the time. There is something behind this one rock that he pops all day long. Not sure what it is but he hates it.

 

[PR_Reefers]

yep... varies greatly but mine will usually start popping if I make any similars sounds lol... i.e. when the metal forceps bump against the glass

 

[Tabasco1]

I have only noticed it recently and have had the rock for about 2 months. Idk, maybe he is just now getting comfortable. I won't rule it out. Are all pistol shrimp reef safe? Just the mantis that are not? Mantis make a similar noise, correct?