Emerald Crabs - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 8 Old 05-22-2007, 10:56 PM Thread Starter
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Emerald Crabs

Both of my small emerald crabs have recently died, within a 2 week time frame. ........HELP.........What do I do?

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I have a 55 gallon tank set up for saltwater; my aquarium has been running for about 5 months. I have 5 fish; there are two clown fish, two blue damsels, and one scooter blenny. I have one red star fish, two red legged hermit crabs, one blue legged hermit, and two snails. I have two filters a mechanical and biological one. My next water change is due on Saturday, and the fish are fed once daily. I also have approximately 30 pounds of live rock.
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post #2 of 8 Old 05-23-2007, 07:04 AM
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what are your water parameters, your temp., and salinity?
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post #3 of 8 Old 05-23-2007, 07:40 AM
Ah better yet, are you sure they died? Are you 100% positive that they did not simply molt?
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post #4 of 8 Old 05-23-2007, 08:10 AM
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yeah, they'll hide till their shells harden. I got worried everytime my coral banded shrimp died, I'd scoop out the dead body...only to find him afew weeks later coming out for food

Saltwater 4foot (67gal) and Reef Rock/Plugs (300)Sump (12gal) with a 3000ltr/hr return pump(32watts)
1x 6025, 3 x TUNZE 6045 for flow.
Aquasonic Skimmer with 3000ltr pump
16watt UV. *5 Lights: 2 Actinics and 2 Daylights and 1 Gro-Lux.
*Fish @ the moment: Powder Blue Tang, South Seas Devil, Mandarinfish, Lemon Peel, Bi-colour angel, Coral beauty, Scopas Tang(4in), Coral Banded Shrimp(been in tank for 4/5yrs) and a Dusky Anemonefish(3in).. and 2 Red Base Sand Anemones..A pair peppermint shrimps.
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post #5 of 8 Old 05-25-2007, 11:17 PM Thread Starter
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EMERAL CRAB

THANKS GUYS I FIGURED IT OUT, MY SALINITY IS AT 1.021, . The problem was my nitrites were to high, my measuring kits for nitrites were bad so i went out and bought a mardel 5 in 1 test works way better.
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post #6 of 8 Old 06-15-2007, 10:32 PM
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what kind of test did you have because i have one that wont read nitrates. it's a doc well fish test.
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post #7 of 8 Old 06-17-2007, 08:01 AM
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Quote:
Originally Posted by caferacermike
Ah better yet, are you sure they died? Are you 100% positive that they did not simply molt?
Heh heh heh. Aint it something the way the skins they shed keep both their structure and their color. They almost look like a well preserved corpse. Ive been fooled a few times by my emerald crabs too.

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post #8 of 8 Old 06-26-2007, 08:57 PM
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i read once that crustatians will position their shells in such a way as to decoy predators away from them till their new shell hardens.like they will put their shell out in the open while they hide behind a rock.
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