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    • Crabby
      By Crabby
      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!
    • Crabby
      By Crabby
      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

    • Tamz
      Red claw cray Fish 
    • sdlTBfanUK
      What creature are you talking about here? I can't get an idea from the photo? Simon
    • jayc
      Absolutely. Just continue with regular weekly water changes. No need to alter the routine, or as Simon said, add additional water changes to the routine. Unfortunately, as long as you are using tap water, the lowest pH it will get is what you have from the tap. 7.4/7.6 as you mentioned above. If it gets down to 7.4, that should make a difference to the shrimp. Especially if GH is around 4.
    • jayc
      Fertilised eggs are moved to the swimmerettes . Unfertilised eggs are kept internally. 
    • sdlTBfanUK
      As you say, the figures are coming down but that means the TDS and GH are getting too low really for cherry shrimp so I wouldn't keep doing extra water changes over your normal routine until you have a definitive plan, stick to your weekly usual for now. Make sure new water is added sowly as well! You could continue with the tap water but would need to get some GH+ to bring the new water TDS and GH up, but thats a bit impractical if you plan to transfer to RO water soon anyway as that requires a different remineraliser. With the RO water you will need to get GH/KH+ before you can use the RO water! The RO water remineralised is the safest way to get and keep the ideal water parameters as tap water can change from different areas and at different times of the year. As JayC mentioned, you could collect rainwater in the meantime but that would still require GH/KH+ I expect otherwise the TDS and GH (and KH) will drop even lower? You will be able to check the TDS pen with the RO water as it should be 000 (or very very close) TDS. Simon
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