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    • Crabclaw
      By Crabclaw
      Hey guys, I’m really wanting to get freshwater crabs, and the only ones I’ve found are A. Lacustris and A. Laevis. I can only put them in a 110 L community tank for now, but may have another option in the future. The tank is stocked with a large school of ember tetras, some rocket killies, some endlers, some tangerine tiger shrimp, and a pair of apistogrammas. Rare aqua advised that A. Lacustris would likely be eaten by the apistos, so the obvious choice would be A. Laevis, because they’re larger... right? But I’m worried that they might predate upon my shrimp, so wanted to hear some advice and opinions from more people with experience keeping these crabs.
      Cheers!
    • Crabclaw
      By Crabclaw
      Hey guys, I’m really wanting to get freshwater crabs, and the only ones I’ve found are A. Lacustris and A. Laevis. I can only put them in a 110 L community tank for now, but may have another option in the future. The tank is stocked with a large school of ember tetras, some rocket killies, some endlers, some tangerine tiger shrimp, and a pair of apistogrammas. Rare aqua advised that A. Lacustris would likely be eaten by the apistos, so the obvious choice would be A. Laevis, because they’re larger... right? But I’m worried that they might predate upon my shrimp, so wanted to hear some advice and opinions from more people with experience keeping these crabs.
      Cheers!
    • waffle
      By waffle
      I've been avidly watching these little guys since receiving them yesterday, and I thought I'd make a new thread for the observations! Fist up some pics!
      Next, some interactions with shrimp. First up, a pair getting intimate (or failing to - looks like the male was just seeing if she was in the mood) while ignoring some nearby shrimp.
       
      Next, a male getting territorial and chasing off a sunkist neo. Sorry about the lower quality - camera was set to low res accidentally. This movement is different from how they attack snails, so I think it's a territory issue rather than a hunting attempt. If you slow down the film you can see he raises his body and claws really high as though to look intimidating. But I'm not a crab expert so I dunno.
       
      Next a shaky-cam quick-and-dirty video evidencing snail-eating prowess. Don't watch if you get motion sick!!
       
      Next up, a rookie attempt at a close-up film. A bit shaky and focus is off, but you can see the female's cute face.
       


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  • Posts

    • sdlTBfanUK
      I would imagine that the crabs will eat dead shrimps, even shrimps eat dead other shrimps, as they are both scavengers. Not sure that they would attack a live shrimp but it is probably best t keep a close eye on what happens before getting any more of either shrimps or crabs for that tank! Simon
    • Grubs
      I think the live shrimp will be fine.  The micro-crabs are delicate creatures taking advantage of a rotting corpse. I'm sure the crabs will enjoy the protein.  Ordinarily I avoid feeding dead livestock to other livestock to prevent transmission of disease or unknown parasites although I will say as a shrimpkeeper the temptation is strong. 😄
    • kms
      Yesterday I put a 3 new shrimps in the tank, and one dead shrimp that was DOA in the bag, nothing happened to the 3 shrimps, but the dead shrimp was swarmed by 3 crabs as food, would you presumed the live shrimps might get attacked soon or later.
    • Lizzy
      Thanks so much for all the info guys. I’m very appreciative!  I’ll update once I get the RO going. Fingers crossed I don’t kill them all 😅 I’m really hoping this will encourage more breeding. In saying that, I have 3 berried as of the last week, which is pretty exciting. 
    • jayc
      No! It's like salt. Does salt go off? Unless moisture and water has got into the container, it should last until the container disintegrates.   Add a bit of Salty Shrimp GH+ into the RO water (go slow), stir it in, until  it reaches 150 TDS. Keep measuring with the TDS meter you are getting. Doesn't have to be exactly 150 as Simon said.    If you have the tools for it and the patience, that is the best way. Or if you are like me, impatient, I add 25% of the new change water back into the tank every 20-30 minutes. So over the span of 2hours or so.
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