Fiddler crabs - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 8 Old 05-04-2010, 01:57 AM Thread Starter
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Question Fiddler crabs

Got some fiddler crabs not even knowing I was going to get them and found out when i took them home that they need to be able to go to the surface for air. I don't really want to drop my water level in my tank so I was wondering if I could pull them out every so often for a while but am not sure how often I should do this or how long they should stay out for. Got a 135 gallon tank with a rena xp canister filter, temp is 80. Thanx in advance.
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post #2 of 8 Old 05-04-2010, 04:21 AM
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They really need to be able to climb out on their own; there's no way for you, as their owner, to tell when they want to be in the water vs. when they want to be out of it and for how long. Fiddlers also should be kept in brackish water. They're also expert escape artists that will find a way out of your tank if they don't find things to their liking (or sometimes even if they do).

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post #3 of 8 Old 05-04-2010, 08:40 AM
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Originally Posted by iamntbatman View Post
They really need to be able to climb out on their own; there's no way for you, as their owner, to tell when they want to be in the water vs. when they want to be out of it and for how long. Fiddlers also should be kept in brackish water. They're also expert escape artists that will find a way out of your tank if they don't find things to their liking (or sometimes even if they do).
+1. I recently read up on them, and this is the information I found too.
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post #4 of 8 Old 05-04-2010, 09:07 AM
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Fiddler crabs are brackish. They will die within months in a freshwater aquarium.

I have 4 thriving in my brackish...I have a turtle dock in there for them to get out of the water, and use a long fake bamboo plant cascading down it for them to climb up. I feed them both on the dock and in the water. They do very well in this setup.

As others said, they are extremely good escape artists unless you give them means to get out of the water and back in as they please.

My Tanks: 120g, 90g, 55g, 29g, 20g, 10g, 10g, 3g, 5g
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post #5 of 8 Old 05-11-2010, 02:20 AM Thread Starter
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I;m gonna set up a 5 gallon brackish tank for these fiddlers. I found some sea salt at my 99 cent store in town....question is will it work? Simply says sea salt on it with some pictures of the ocean, seems pretty generic. I read that it should be marine salt and not just aquarium salt is this true?
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post #6 of 8 Old 05-11-2010, 06:57 AM
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Marine salt is not the same thing as sea salt that's marketed for use in cooking. You need to get yourself true marine salt mix. It can be kind of expensive but in a small tank like that a bag (or bucket) of it should last a very long time.

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post #7 of 8 Old 05-11-2010, 07:05 AM Thread Starter
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Will this kind of salt work?
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post #8 of 8 Old 05-11-2010, 07:28 AM
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Nope. That's just table salt in a fancy box. You need something like this:

http://www.fosterandsmithaquatics.co...6&pcatid=12176

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