They primarily live in areas with abundant sea grass coverage and occupy dens built into the sandy seafloor, which they line with small pebbles.

In its resting camouflage, A. aculeatus displays mottled ochre, gray, and brown colors that resemble a shell overgrown with algae, and dark arm bars reminiscent of hermit crab legs.

They will chase their prey by jetting, the act of forcing water out of their siphon in order to propel their body forward, head first.

In addition to the common tactics of swimming, crawling and jetting, algae octopuses participate in upright, bi-pedal locomotion.

This is a fast method of movement used for escape and often paired with crypsis, or camouflage to mimic surrounding sea grass.

[4] Octopus bimaculoides may be a closely related species, as the two share many skin components that are the basis for their camouflage tactics, though this may also be evidence of evolutionary convergence.