ID shrimp

Krib

AC Members
Sep 9, 2006
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Please id this guy for me, does this speices eat plants.
 
Ok so here are pics of the shrimp in question

IMG_0825.JPG IMG_0834.JPG IMG_0835.JPG IMG_0836.JPG
 
It's a juvenile M. dacqueti, member of a species once uniformly termed Macrobrachium rosenbergii but recently split into M. dacqueti and M. rosenbergii proper. At the moment, you'll get best online results with M. rosenbergii as your search term.

These two species range collectively from Pakistan to Northern Australia, with M. dacqueti occupying the western half of the range.

I've kept them with Bacopa and Nymphaea without any problems and have seen captive specimens in planted setups (see here and here). Not speaking from personal experience, I would guess that they might consume soft plants if their diet contains insufficient vegetable matter.

They're very interesting shrimp, much more responsive and "personable" than small Atyids like cherries, can come to recognize their owners. However, they are one of the largest freshwater shrimp and can be predatory. What size are yours?
 
I have four of these guys in a 55 gallon aquarium. I am hopefully going for a community aquarium with these guys but as you said cuvier, i might not be able to.
 
Depending on sex, you'll want to split them up. The adult Alpha male could turn on any other male at any time. Since these guys are more walkers than swimmers, similar to crayfish, it's footprint, not only water volume, should be considered when tank size is considered, for any species of Macrobrachium shrimp.

Quick notes, you won't get any offspring, without a serious investment in time, their life cycle is similar to Caridina multidentata (Amano shrimp).

The subject shrimp, of the bottom image, appears to be the developing Alpha.
 
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