Asellus aquaticus
A leaf recycler in the underwater forest. Asellus aquaticus is a freshwater isopod that lives among submerged leaves and other sheltered organic material. It remains a selected potential inhabitant for KA’AETÉ, but only with verifiable legal captive-bred provenance. No individuals have been introduced.

Not a shrimp, not a land woodlouse
Asellus aquaticus is a freshwater member of Isopoda, the order that also contains terrestrial woodlice. Rather than living above the shoreline, it moves among waterlogged leaf litter and sheltered surfaces, feeding on conditioned plant debris and associated microorganisms.
The microbes matter
Research indicates that the gut microbiome contributes to the processing of leaf detritus. Fungi and bacteria condition decaying material; the isopod’s feeding and fragmentation participate in a network rather than single-handedly ‘cleaning’ the water. Its effectiveness depends on food, oxygen and local environmental conditions.
A careful fit for KA’AETÉ
Because this species is associated with temperate freshwater, water temperature and its tolerance of the future indoor environment require particular verification. Well-oxygenated refuge areas, gentle flow, leaf litter and freedom from stronger predators are considerations, not guarantees of compatibility. Do not collect animals from the wild just to fill the system.
STATUS · Selected subject to strictly documented lawful, reliable captive-bred origin and verified climate compatibility. Not present. The physical build began on 16 October 2026.
Scientific reference: Liao et al. (2023), Environmental Microbiology Reports
