White Leg Hermit Crab

Clibanarius sp

Saltwater Invertebrate Species Group: Crab Family: Diogenidae

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Water parameters

Temp 76-80 F Temperature

Maintaining a stable and appropriate temperature is critical for the survival of aquatic life.

pH 7.8 - 8.4 potential of Hydrogen

Measuring the acidity or alkalinity of water on a 0–14 scale, where 7 is neutral, 7 is alkaline.

NO3 1-20 ppm Nitrate

While less toxic than ammonia, high nitrate levels (above 40–80 ppm) are important to monitor because they can cause fish stress, stunted growth, and harmful algae blooms.

NO2 <0.0001 ppm Nitrite

It is a highly toxic, intermediate compound in the nitrogen cycle produced from broken-down ammonia

PO4 0.01 - 0.1 ppm Phosphate

It is essential for plant development but must be managed, as excess levels trigger nuisance algae blooms and inhibit coral calcification.

NH3 <0.1 ppm Ammonia

It is the primary killer of aquarium fish, causing gill damage, stress, and death

Ca 380 - 450 ppm Calcium

Supporting the growth, skeletal structure, and shell formation of corals, mollusks, crustaceans, and coralline algae

KH 8 - 12 dKH Alkalinity

It acts as a shield, neutralizing acids to prevent dangerous pH "crashes" that can harm fish, corals, and plants.

Mg 1200 - 1400 ppm Magnesium

It enables coral growth by supporting skeletal formation, assists in metabolic processes, and ensures that calcium is available for corals, clams, and coralline algae.

SG 1.023 - 1.026 SG Salinity

Essential for maintaining stable, natural water parameters, proper osmoregulation, and stress-free environments for marine fish and corals

ORP 250 - 400 mV Oxidation-Reduction Potential

A higher positive mV indicates clean, oxygen-rich water with high water quality, while low readings indicate high pollution.

About White Leg Hermit Crab

General information

White-legged hermit crabs are active dwellers of the aquarium. They help maintain the aquariums clean by preventing waste build up. These species acquire a peaceful temperament. They are reef safe and do not pose any threat to their neighbors. 

Water temperature should be maintained between 72 to 78 degrees Fahrenheit. The proper pH should be between 8.1 and 12, and the water’s specific gravity should be between 1.023 and 1.025. The required tank size should contain a minimum of 25 gallons of water and should have enough algae material in the aquarium.

Diet & nutrition

These species basically live on a herbivorous diet, which solely feeds on algae.

Origination

These type of species can be found in the oceans of Western Atlantic.

Cautions

Like most invertebrates, the White-Legged Hermit Carb does not do well if there are large swings in water parameters. They also do not tolerate any types of metal traces in the water, there for you should never be in contact with any copper medications.

Acclimation process

Most invertebrates don't like large swings in water parameters and the White-Legged Hermit Carb is not an exception, so even though most hobbyists do not acclimate their cleaner crews it is suggested to do so. If you have a sump, float your cleaner crew in an area with low light to allow them to temperature acclimate first which should take about 15-20 min. Then it is best to slowly drip acclimate them to allow them to adjust to your water conditions.

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