Snapping shrimp killing fish?

[stuyorkshire]

I picked up a hi-fin banded goby pair and a snapping shrimp 5 weeks ago.
I saw the female hi-fin for about a week, then no sign since.
Over the weekend I found my cleaning shrimps trying to eat a dead Court Jester Goby that had been missing for a week.
Today I found them with parts of my smallest Springers Damsel.

Tank parameters are as expected, and I can’t imagine the cleaners killing fish, but the snapping shrimp (description- small and grey-brown ) has excavated lots under my rock work and seems very busy although I’ve never seen it since it went in.

Any thoughts?

 

[stE25wy14]

gobies are known to hide away for some time
did u make any changes to the tank in that time period? its very rare that a pistol goes off and kills a lot of fish from what I am seeing online. what are you feeding?

 

[stuyorkshire]

I’ve not made changes that coincided with disappearances, but did have a minor KH spike a while back

 

[stuyorkshire]

Feeding micro pellets in the morning, frozen pods in the evening and a weekly dose of live pods

 

[Mr. Mojo Rising]

Do you mean a pistol shrimp? What type of pistol was it? Tiger pistols have been known to kill a fish, however it could be they are misidentified.... Candy pistol is unlikely to hurt a fish..... Whats the tank size? You have both a cleaner shrimp and a pistol shrimp? (it was not clear to me)

 

[stuyorkshire]

Hi I have two cleaners and a pistol. Closest I can get to pistol ID from memory is that it probably isn’t a tiger or candy.

 

[Reeferbadness]

I've had a pistol shrimp for 4+ years ... he doesn't harm anyone except blasting the occasional hermit that comes to close.

 

[stE25wy14]

do u have a pic of the pistol?

 

[Tamberav]

It could also be disease since a new fish was added just 5 weeks ago and disappeared first, or aggression. You mentioned the smallest damsel death which means multiples and the smallest would be the target of others.

Not saying it can’t be a pistol but I wouldn’t rule out other causes. Especially if the pistol does not seem to murder inverts.

 

[stuyorkshire]

do u have a pic of the pistol?

no, sorry

 

[stuyorkshire]

It could also be disease since a new fish was added just 5 weeks ago and disappeared first, or aggression. You mentioned the smallest damsel death which means multiples and the smallest would be the target of others.

Not saying it can’t be a pistol but I wouldn’t rule out other causes. Especially if the pistol does not seem to murder inverts.

Thanks, after reading responses I'm coming round to a mix of coincidence and bullying of the damsel by the larger of the group.