The Scarlet Hermit Crab should be added into a well-established tank. It is a very hardy species, and does not need much care and maintenance. Therefore, it makes a very good choice for a beginner aquarist. The Scarlet Hermit Crab is a voracious eater and mainly feeds on algae of the filamentous, hair, and slime varieties, as well as cyanobacteria. It is very peaceful towards other inhabitants, which makes it a very good addition to a reef tank. The Scarlet Hermit Crab features bright red legs, which is contrasted by its yellow face, an amalgamation that adds beauty to this organism. It acts as a scavenger and consumes large amounts of animal matter and algae. If algae levels are insufficient, the Scarlet Hermit Crab can be supplemented with dried seaweed and other marine foods. Make sure you add ample empty shells to avoid the possibility of the crab harming the snails to acquire their shell as shelter. Since the Scarlet Hermit Crab undergoes molting in order to grow itself, it is necessary to provide it a few empty shells. It is sensitive to copper-based medications and extreme fluctuations in water parameters. By feeding on the detritus, the Scarlet Hermit Crab keeps your tank immaculately clean. It is moderately aggressive and might end up fighting against the members of its own species. The Scarlet Hermit Crab is absolutely reef safe and doesn?t bother any corals present.