Overview: Brissus spp., commonly referred to as Sand Dollar Flats, are a genus of sea urchins known for their distinctive flattened, disc-like shape. These invertebrates add an intriguing element to marine aquariums, particularly in sandy or mixed-substrate tanks.
Care Level: Moderate. These species require stable water conditions and specific feeding routines to maintain health.
Feeding: Brissus spp. are deposit feeders that consume detritus, microalgae, and organic matter found within the substrate. Supplement their diet with finely powdered marine invertebrate foods or specialised urchin pellets to ensure nutritional balance.
Compatibility and Reef Safety: Generally reef safe, Brissus spp. can coexist with a variety of peaceful tank mates. However, care should be taken with aggressive or predatory species that may harm them. Their delicate body structure means they should not be housed with large, boisterous fish or invertebrates that may cause damage.
Tank Requirements: A minimum tank size of 100 litres is recommended to provide adequate space and stable environmental conditions. They thrive best in tanks with a sandy or fine substrate to allow natural burrowing behaviour.
Water Parameters: Maintain stable marine conditions with temperature between 24-26°C, salinity at 1.023-1.025 SG, pH 8.1-8.4, and low nitrate levels.
Placement: Position Sand Dollar Flats on or slightly buried within the substrate in a low to moderate flow area to mimic their natural habitat.
Additional Notes: Due to the genus-level identification, specific origin and maximum size data are not provided. It is advisable to monitor water quality closely and avoid sudden changes to ensure their wellbeing.
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