Macrobrachium are seriously predatory, I'd stay away from them except for a species only tank. I rescued, in the nick of time, one of my Otos from a Macrobrachius. That bad boy is not in a tank with anybody else, now.
there is a species of macrobrachium that is peaceful its called a pearl shrimp(among other common names) now im not sure where they originate from but i know Msjinkz is selling some but i cant be positive if she still has any left
there is a species of macrobrachium that is peaceful its called a pearl shrimp(among other common names) now im not sure where they originate from but i know Msjinkz is selling some but i cant be positive if she still has any left
Those are M. kulsiense from India. There are a number of other relatively peaceful Macrobrachium, but the ones mel_20_20 has belong to the M. rosenbergii species group, so what's she's seeing isn't surprising. When those get larger, they can be kept, with varying degrees of success, in community tanks with large fish (see here for one kept with oscars) and will often ignore small or swift schooling fish; I personally wouldn't recommend it.
I just don't know for sure about my shrimp belonging to the rosenbergii species. My shrimp at this point doesn't look at all like the ones I've seen in pictures and on youtube. Could mine be assamensis?
The rosenbergii I saw on youtube have blue arms and the coloration of the body looks different. Mine has red arms and a red rostrum. He has a yellowish hue and the stripes that run from his head down the side of his carapace, like the assamensis on the youtube videos.
My shrimp is definitely aggressive and I know the rosenbergii are, but are the assamensis? Do the rosenbergii have red arms?
I'm not a shrimp expert at all and need you guys to ID him, but he sure doesn't look like those rosenbergii in the pictures. Is it because he's still fairly young, that his arms are red?
Crayfish generally are not found around the equator in tropical regions as crabs have the biological advantage and have edged out crays. The crays stop somewhere around lower Central upper South America. South America is almost totally free of crayfish. There are some but they are few and far between and exist in ecological niches I think. Africa has no crayfish whatsoever.....sad isn't it?!:jaw-dropping:
Crayfish generally are not found around the equator in tropical regions as crabs have the biological advantage and have edged out crays. The crays stop somewhere around lower Central upper South America. South America is almost totally free of crayfish. There are some but they are few and far between and exist in ecological niches I think. Africa has no crayfish whatsoever.....sad isn't it?!:jaw-dropping:
The crayfish genus Procambarus (to which the Louisiana reds belong) makes it into Central America as far south as Guatemala, but there are Parastacids (from the same family as Australian, New Zealand, and Madagascar crayfish) in southern South America. None of these S. American crays have entered the intl. aquarium hobby, to my knowledge.
Mainland Africa entirely lacks native crayfish, but as mentioned, there are some interesting species in Madagascar ... and introduced P. clarkii and Cherax. (Remarkably, marmorkrebs have ended up in Madagascar, with as-yet unknown consequences for the natives.)
In addition to true crabs, southern S. American Aegla (related to squat lobsters and hermit crabs) are another possibility, but only if you have something other than the standard Amazonian biotopes in mind.
