Puerto Rican shrimp and snails

Nice photos. I'm really liking the yellownose.

247Plants said:
That Micratya poeyi is insane! I bet those will be a hit in the hobby.
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It's been in the hobby for a few years now.. never was really popular, though I personally like the patterning of it myself. I think it's more attractive than the other fan shrimp in the hobby.
 
that yellow nosed reminds me of the red nosed i had before i knew any better. (they were in a tank with tiger barbs... stupid, stupid... duuuuhhh, stupid me)... oh well scientific name= Caridina gracilirostris and they were awesome. i will have more one day. oh yes there will be more. thanks for sharing.
 
Do any of these shrimp breed in freshwater or do they require salt or brackish water for reproduction... amazed some of them arn't more common if they would breed within aquaria.
 
These shrimp are amphidromous (they spend their entire adult lives in freshwater but the larvae drift downstream to estuaries or the ocean before returning upstream en masse ... often having to scale waterfalls or truck onward while entirely out of the water).

There are scientific papers from the 70s that specifically address the question of how to raise Micratya poeyi and Atya innocous from larvae to juveniles, and aquarists have recently had success with the captive breeding of bamboo shrimp and Sesarmid crabs in captivity. At any rate, inability to complete their lifecycles in a freshwater tank doesn't explain the ubiquity of Amanos and bamboos in the aquarium hobby -- the American shrimp you see here are simply not commercially collected. Until more aquarists are prepared to raise marine larvae, this is hardly a bad state of affairs.

Micratya poeyi:

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An older male Macrobrachium faustinum:

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Nice shots! If you don't mind, Cuvier, please tell me more about the places where you found atyids (flow, substrate, water temp, anything like that would be great). The reason I ask is that I am considering buying some Atya scabra and would like to match their natural conditions as closely as possible. Thanks!
 
Notophthalmus said:
Nice shots! If you don't mind, Cuvier, please tell me more about the places where you found atyids (flow, substrate, water temp, anything like that would be great). The reason I ask is that I am considering buying some Atya scabra and would like to match their natural conditions as closely as possible. Thanks!
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Don't have all my field data at home at the moment, but they were most often found in cool, rapidly-flowing riffles beneath and around stones (large gravel to fist-sized cobble and above). However, I also encountered them in pools beneath trickling waterfalls some distance inland (most visibly clinging to submerged branches). No macrophytes, but sometimes leaf litter and woody debris in addition to stones.
 
Cuvier said:
Don't have all my field data at home at the moment, but they were most often found in cool, rapidly-flowing riffles beneath and around stones (large gravel to fist-sized cobble and above). However, I also encountered them in pools beneath trickling waterfalls some distance inland (most visibly clinging to submerged branches). No macrophytes, but sometimes leaf litter and woody debris in addition to stones.
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How about some pics:grinno:? We love pics!
 
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