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FAQs on Freshwater Crab Selection

Related Articles: Fresh to Brackish CrabsFreshwater CrustaceansInvertebrates for Freshwater Aquariums by Neale Monks, Forget Crawfish Pie, Let's Make a Crawfish Tank! By Gage Harford

Related FAQs: Freshwater Crabs 1, Freshwater Crabs 2, & FAQs on: FW Crab Identification, FW Crab Behavior, FW Crab Compatibility, FW Crab Systems, FW Crab Feeding, FW Crab Disease, FW Crab Reproduction, & Fresh to Brackish Water Crabs, FW Crustaceans 1FW Crustaceans 2, Terrestrial Hermit Crabs, & Marine: Hermit ID, Hermit Behavior, Hermit Compatibility, Hermit Selection, Hermit Systems, Hermit Feeding, Hermit Reproduction, Hermit Disease/Health, & Crayfish FAQs, Crayfish 2, Crayfish ID, Crayfish Behavior, Crayfish Compatibility, Crayfish Selection, Crayfish Systems, Crayfish Feeding, Crayfish Disease, Crayfish Reproduction,

 

Crustacean for a Community Tank - 05/21/2006
Hello folks,
<Hello, Doug.>
I've been reading your articles with interest but I still am unsure about what I should do with regard to finding a suitable crustacean for my community tank.
<Someday we'll have a shrimp article up....  just (finally) wrote the thing.>
This is a freshwater tank, 20 Gallons, 2+ years old, nice and stable. Right now I have 5 Rasbora tetras, 6 cardinal tetra's and one fairly large Chinese golden algae eater (5" long). We added the Cardinals a month or so back and they are doing fine. We wanted to get some kind of crustacean to complete our community but are not sure what would be best after reading about predation of tank mates. What do you think might work in this situation?
<LOTS and LOTS of options....  Any shrimp from genera Atya, Atyopsis, Caridina, or Neocaridina....>
I had thought of a Hammers cobalt blue lobster but after reading more about it realized that it would probably be the sole tank occupant in short order.
<It would.  Stay away from any crayfish/"lobsters".  If you want something big and beefy, for a 20g tank, maybe look for Atyopsis moluccensis, the "bamboo" or "wood" shrimp.  A 20g tank is suitable for a male and a few females.  Or if you want something bright and tiny, look for "cherry" shrimp (Neocaridina denticulata sinensis v. red), "Rudolph"/"red-fronted" shrimp (Caridina gracilirostrus), or maybe "crystal red" shrimp, (Caridina sp.).  There are plenty of other small shrimp species that are less colorful, and most any would be of use here.  I do hope you are able to find a fun and pleasing pet to add!>
Thanks for your advice.  -Doug
<Glad to be of service!  Wishing you well,  -Sabrina>

Online Freshwater Livestock Store? - 08/19/2005
What is a good web site to order freshwater fish/snails/crabs online?
<As far as fish are concerned, you might try
http://www.liveaquaria.com/ .  Crabs - please keep in mind that there are NO truely aquatic, freshwater crabs available in the hobby in the US, to my understanding....  ALL are brackish to marine animals, or absolutely require a land mass....  For some pretty neat fish and inverts, http://www.franksaquarium.com/ .  Some really awesome North American natives can be found at http://www.jonahsaquarium.com/ .  Hope you find what you're looking for!  Wishing you well,  -Sabrina>

Just a quick question, missing livebearers post holiday  7/14/07
Hi, I currently own a ten gallon tank with a few platies and a guppy inside it, along with a few platies that are small. I went on vacation and notice that a few are missing.
<Sorry to hear that. Be sure and figure out *why* before adding anything new. Check water chemistry and quality, for example, and double check you're using the right food, i.e., something vegetable/algae based rather than generic flake food.>
I think they might be dead, and I just want to know your suggestions on what might have happened...
<No idea without more details. Water chemistry, water quality, number of each species, how long you were gone, what foods used, etc....>
...and what kind of crabs and shrimps are compatible with them.
<None. Crabs are [a] amphibious so need somewhere to walk on land and [b] predatory. Shrimps can work with small fish but they are generally delicate and if you can't keep guppies alive then you're probably not at the stage in your hobby where buying shrimps would be worthwhile. That is, unless you don't mind the shrimps being dead in 4 weeks. Seriously, they need excellent water quality, the correct diet, and safe places for moulting where they can't be molested.>
I usually leave fry in the tank instead of separating them and I want a few to live, are these good to add to the tank?
<Don't understand this. Do you mean the crabs and shrimps are good to add to the tank? If so, no.>
Or are they bad like Albino Aquatic Frogs? (I had bad experiences with them)
<Not "bad" but just wrong for you and your aquarium. Crabs need their own vivarium a bit like something used for newts or frogs, with some water for bathing but also some dry land for social behaviour and feeding. Shrimps are really something for the semi-advanced hobbyist. Most of the ones sold end up dying within a few weeks when thrown into generic community tanks. Cheers, Neale>

 

 

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