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Fiddler Crab Care Sheets
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Care Sheet for Crustaceans

Average Rating Given To This Care Sheet Is 3.43    (1=lowest, 5=highest)    Last Updated: 03/17/2005

Main Category:

Non-Reptile/Amphibian

Sub Category:

Crustaceans

 Care Sheet Submitted By:

HamTang

Years Experience:

1 to 2 Years

Species:

Fiddler Crab

Other Species or Phases this Care Sheet May Cover:

Red-Claw Crabs, "Mini" crabs

Sexing and Characteristics:

The females have two small pinches and the male has one very large claw that he waves around. Breeding habits in captivity are unknown to author.

Mostly Active During:

Night

Substrate and Water Needs:

The habitat can be mainly water (with a filter) but they absolutely need brackish water (where fresh meets salt water) and they need a place to access dry land, otherwise they will drown within a month. Sand or gravel meant for aquariums is fine.

Lighting and UVB:

No UVB is needed, just enough light so they know whether it is night or day.

Temperatures and Humidity:

Temperature should be around room temp, not too hot or cold. Humidity can be pretty high because of all the water.

Heating and Equipment:

No heater is needed unless the water is cold to the touch and a filter is necessary to keep the water clean. If the water is cold, you may add a basking bulb. If it is a large tank, a small submersible heater may be used.

Caging Provided:

No smaller than a 10 gallon. A male and female can live together, otherwise I know females and males will try to eliminate competition and harass smaller crabs unless a large tank is given. I have gravel going upwards into a slope and have a castle decoration with a hole they can hide in, while being able to climb the turrets to leave the water.

Diet:

Omnivorous

Description of Diet:

They love both shrimp pellets, algae disks, and frozen food (blood worms, brine shrimp, etc.) but should be given sparingly so as not to pollute the water. They supposedly eat small micro-organisms living in the gravel.

Supplements, Nutrition and Usage:

None

Maintenance:

Water should be partially changed once or twice a month. I do half fresh dechlorinated water (Nov-Aqua) and half salt water (1/2 Instant Ocean and Nov-Aqua added) to replace the water.

Some Words on this Species:

They will molt, which is to shed their entire exoskeleton. Allow them to consume it as it will help them regain some of the calcium they lost.
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DISCLAIMER:
The information contain in these care sheets represents only the opinions and husbandry care of members and therefore is not guaranteed to be 100% accurate or reflects the advice or opinions of RepticZone.com. It is always advised to seek additional information or the advice of a qualified veterinarian or qualified reptile dealer. It is also advisable for you to a good amount of research before implementing any of the ideas and care described in these care sheets. We also recommend you ask many questions in their related forums before acting on any information.

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