Population Question And Suggestions

[eaglesaquarium]

Are you sure they are ghost shrimp and not macrobracium?  

 
Notice the large pincers in front...
 
versus 
 

 
See the difference?

 

[jonathanandmadi]

I positive it's the bottom photo, ghost shrimp. Looks exactly like the buggers in my tank.

 

[eaglesaquarium]

The reason I ask is that they are often confused, especially in the UK (seemingly) and I've never known the ghosts to go after fish, but the macrobracium do.

 

[jonathanandmadi]

These guys are mean. Just looking for a fish or a 5 that might mesh well. These zombie shrimp were a mistake. They're cool, but I've had this betta for so long. How sad.