Trapezia sp.

Datasheet

General Description

The Trapezia Pocillopora/Acropora Crab, or Acro Crab, is a small commensal crustacean that resides exclusively within the branches of Pocillopora and Acropora corals. It plays a vital role in maintaining water flow within the coral branches and assists in keeping the area clean. This species has a symbiotic relationship with its host coral, feeding on trapped particulates, detritus, and coral mucus, while also protecting the coral from potential threats.

Aquarium Suitability

With an easy care level, these crabs are suitable for aquariums, particularly for hobbyists interested in SPS husbandry. They do not require a specific diet as they feed off debris and mucus from their host coral. It's essential to note that Trapezia Pocillopora/Acropora Crabs are obligate commensals and need a host coral for survival. They are peaceful in temperament and can enhance coral health.

Demands, Care, and Hardiness

Trapezia Pocillopora/Acropora Crabs have low care demands, making them suitable for beginner aquarists. They thrive in stable water conditions with moderate levels of alkalinity (KH) ranging from 8-12 and a pH between 8.1-8.4. These crabs are sensitive to high nitrate levels and copper-based medications, so water quality monitoring is crucial for their well-being.

Reef Suitability

Considered reef-compatible, these crabs add value to reef ecosystems by aiding in coral health and cleanliness. Their presence can contribute to higher coral survival rates and growth due to their cleaning and protective behaviors towards their symbiotic host corals.

Aquarium Setup

Providing a minimum tank size of 113 liters is sufficient for housing Trapezia Pocillopora/Acropora Crabs. Ensuring the presence of compatible Pocillopora or Acropora corals within the aquarium is essential for the crabs' survival. Regular supplementation of calcium, magnesium, iodine, and trace elements is recommended to support the overall health of the corals and the commensal crabs.

Behaviour

These crabs exhibit peaceful behavior within the aquarium environment, focusing their activities on cleaning and protecting their host corals. Despite their small size, they play a crucial ecological role in maintaining the balance within coral reef systems.

Feeding and Diet

As carnivorous creatures, Trapezia Pocillopora/Acropora Crabs predominantly feed on particulates, detritus, and mucus within their host corals. They may consume excess meaty food particles that land on the coral, but a staple diet is not necessary as they rely on the resources provided by their symbiotic relationship with the corals.

Habitat and Distribution

Trapezia Pocillopora/Acropora Crabs are found in the Indo-Pacific region, primarily residing within the branches of Pocillopora and Acropora corals. Their distribution is closely linked to the availability of suitable host corals in reef habitats throughout their range.