Rusty Macro. shrimps
Moderator: Mustafa
Rusty Macro. shrimps
I was just wondering if forum members here who lives in USA have had success in breeding this wonderful Rusty Macro. shrimp? If so, please let me or others know so you can share some wonderful information on how you breed them successfully. I have heard/read a lot about Red Claw shrimps and others such as M. rosenbergii but not too much about Rusty Macro. Thank you everyone if you can contribute your own personal experiences.
Unless someone imported these shrimp, all the rusty macros in the US would have come from my offspring. There aren't that many people out there who have these shrimp (and kept them alive).
In any case, due to some mishaps (long story) I only have one female left. Since I want to keep this shrimp around in the hobby, I would appreciate it if someone who still has a male around could contact me via *PM* or email. So...if you have a brown Macro running around in your tank, even if you did not know it's a rusty macro, let me know.
I know this is against the "looking for shrimp" rule, but...well...I made the rule and for *special* circumstances (as a shrimp disappearing from the hobby) I am allowing myself to break it this time. The difference between this and "who has red cherry shrimp???" type of posts should be obvious.
Thanks for your understanding.
In any case, due to some mishaps (long story) I only have one female left. Since I want to keep this shrimp around in the hobby, I would appreciate it if someone who still has a male around could contact me via *PM* or email. So...if you have a brown Macro running around in your tank, even if you did not know it's a rusty macro, let me know.
I know this is against the "looking for shrimp" rule, but...well...I made the rule and for *special* circumstances (as a shrimp disappearing from the hobby) I am allowing myself to break it this time. The difference between this and "who has red cherry shrimp???" type of posts should be obvious.
Thanks for your understanding.
Nope. But then, I also wasn't really looking all that hard due to my move. I can always try to get them from India again when I need to. Or from a friend in Germany when I go back again next year. It's just that females tend to be harder to find in wild shipments as they look very different from the males and the exporters think they are a different species. So, they tend to collect only or mostly deep brown specimen, which are all male. No hurry though...I will get them when I need them. They do tend to be more aggressive than red claw macros and fuzzy claws, so they need more space. I want to "create" space for them first before I go out there and get more. Breeding macros in larger numbers requires much more space than breeding dwarf shrimp. I lost my last female right after the move, which kind of makes looking for just a male a moot point anyway. Thanks for trying to help, though.pixl8r wrote:Mustafa,
Were you able to find a Rusty male? I've got a friend in Spain who might be able to ship some over, but I don't know how well they'd handle the trip.
And interesting side note. Before my female died I did manage to complete a crossbreeding experiment between her and a large red claw male. And low and behold they crossbreed (after some dropped eggs initionally). I got fully functional juveniles ouf of this attempt who looked almost exactly like rusty macro juveniles. Unfortunately, they hatched a few days before the move and did not survive the move itself.
In any case...this experiment helped me figure out what species these guys actually are (especially the rusty macro). I was susptecting this for a long time but I was just deminding some proof.
The rusty macro turns out to be Macrobrachium assamense and the red claw macro is Macrobrachium dayanum...related but externally and behaviorally very different species. Also, sadly, I lost all of my red-claw macros right after the move (new tank syndrome stress...despite cycling and inocculation with filter sponge...again...too many shrimp in the tank...see other posts). Luckily, (but still sadly) this was the only species that I lost completely.
It's all worth it though...San Diego is definitely a MUCH better place for a shrimp breeding operation than Manhattan...in all respects! 
Mustafa, you've just changed months of my work into garbage 
I always assumed the Red Claw is Macrobrachium assamense because of the dark rings on the red pincers. The German name 'Ringelhandgarnele' suits this shrimp well. Unfortunately, the M. dayanum is called the same. How exactly does one differ these two?
I always assumed the Red Claw is Macrobrachium assamense because of the dark rings on the red pincers. The German name 'Ringelhandgarnele' suits this shrimp well. Unfortunately, the M. dayanum is called the same. How exactly does one differ these two?
I was soo tempted to make a lame joke, but with super human effort, I didn't.
Honestly, I haven't been able to find any clear indication, besides superficial coloration differences. But since I've never kept 'Rusty' shrimp, all I have to go by are photos.
From what I understand both species are found in the same geographical area. It could be another instance of something like 'Jaguar' and 'Puma' being the same species, with different common names. I'm not an expert on large American hunting cats, but I did a report on them in Jr High. So, as everyone knows a little knowledge can be dangerous!
Honestly, I haven't been able to find any clear indication, besides superficial coloration differences. But since I've never kept 'Rusty' shrimp, all I have to go by are photos.
From what I understand both species are found in the same geographical area. It could be another instance of something like 'Jaguar' and 'Puma' being the same species, with different common names. I'm not an expert on large American hunting cats, but I did a report on them in Jr High. So, as everyone knows a little knowledge can be dangerous!
Puma...cougar...mountain lion, never heard of it being called a Jaguar (happens to be my favorite Big Cat).pixl8r wrote: From what I understand both species are found in the same geographical area. It could be another instance of something like 'Jaguar' and 'Puma' being the same species, with different common names. I'm not an expert on large American hunting cats, but I did a report on them in Jr High. So, as everyone knows a little knowledge can be dangerous!
Not to get too far off topic, puma and jaguar are names used in Central and South America. Since the only area that the two cats overlap is in Central America, I used the names common to them there.
My point was that, even though these two cats, while they tend to have different coloration, that does not always hold true. They are the same relative size; they also overlap in habitat. They have similar hunting techniques (climbing trees/perches, ambush) and hunt the same types of animals.
That was just an example of how difficult it can be for scientists to differentiate one species from another, similar to M. assamesse and M dayanum. Obviously it's not as difficult to distinguish the puma & jaguar
My point was that, even though these two cats, while they tend to have different coloration, that does not always hold true. They are the same relative size; they also overlap in habitat. They have similar hunting techniques (climbing trees/perches, ambush) and hunt the same types of animals.
That was just an example of how difficult it can be for scientists to differentiate one species from another, similar to M. assamesse and M dayanum. Obviously it's not as difficult to distinguish the puma & jaguar