Red Legged Hermit Crab
Red Legged Hermit Crab has a bright red body and yellow eyestalks and also seems to like coralline algae, but does not stay in one place long enough to do much harm. What small damage is done is usually re-grown within a couple of weeks.
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Has a bright red body and yellow eyestalks and also seems to like coralline algae, but does not stay in one place long enough to do much harm. What small damage is done is usually re-grown within a couple of weeks.
Also a good bottom scavenger, especially in reef aquariums. However, some seem to dwell more on rocks where picking at algae appears easier to get at.
Does not seem to harm coral polyps.
Stocking level recommendations vary greatly for these little janitors/scavengers, e.g., from 1 to 10 per gallon for reef aquariums. Yet one should relate their need to the condition of the aquarium, as very well maintained systems need only a few in the entire system. Overcrowded and/or overstocked systems no doubt need higher quantities. And new systems probably need none, as hermit nutritional needs will not be met until the aquarium ages somewhat.
If the supply of algae is limited, an algae wafer or feeder block may help supplement their diet. They also feed on any uneaten foods that fall to the aquarium bottom, whether it’s flake, frozen, or live.
Keep in mind they do not have a shell of their own and therefore seek suitable size empty shells for protection, usually empty snail shells. The tip of their abdomen is then backed into the columella of the empty shell, calling it home. When danger exists, they retract further into the shell, disappearing from view. As they grow larger via the molting process in the wild, they must seek other slightly larger empty shells. Its this process of living in someone else’s shell that has led to their common name ‘hermit,’ i.e., a hermit living alone.
It’s advisable to keep an assortment of different size empty snail shells in the aquarium when maintaining this species (or any hermit), as they are very fussy about the space they have inside their selected shell and are always looking for something better/slightly roomier! In fact, they often enter into battles with other hermits for their shells, with the loser either highly damaged or dead. They may also sometimes pick on live snails, however, it is thought they are seeking the shell and not attacking the snail itself.
Keep in mind they cannot tolerate copper treatments, therefore if they are in the same aquarium where fish need to be medicated with copper, they must be removed.
|Maximum Size||Leg span 3.8cm (1.5”)|
|Water Parameters||SG: 1.020-1.025, pH: 8.1-8.4|
|Temperature||Tropical: 23-27 deg C (73-81 deg F)|
|Compatibility||Reef with caution|
|Lighting||No special requirements|
|Reef Aquarium Compatibility||Usually safe when kept in low numbers. Large specimens have been known to attack snails.|
They will graze on algae present in the tank, and will not harm Corals or other inverts.It is important that proper calcium (420-440 ppm), alkalinity (8-9.5 dkh – run it 7-8 if you are carbon dosing) , and magnesium levels (1260-1350 ppm) are maintained. Raising magnesium levels gradually up to 1400-1600 ppm can help to combat algae outbreaks, just keep CA and Alk in line as you raise the Mg. Nitrates should be below 10 ppm and phosphates should be below .10 ppm.
We recommend doing a water change when Nitrate levels rise to 10 ppm. It is important to replace your phosphate media when phosphates rise to .10 ppm. Media Reactors make the most efficient use of your phosphate media by fluidizing it.Fraggle Reef uses and recommends dosing pumps to automate the dosing of additives and keep your levels more constant.
A dosing pump can alleviate the chore of manually dosing your aquarium with Ca, Alk, & Mg 2,3, or 4 times per week and will benefit your aquarium by keeping your levels constant through frequent small additions of Ca, Alk, & Mg.
Our tanks all progressed when we switched from 3 manual dosing per week to 70 automatic dosing per week and we got a lot more work done.Acclimatising your new corals is an important method to make sure they survive and thrive in your system. Click here for more information.For all your various converters, calculators, supplements calculators click here.
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