Galaxy Pleco's originate from the Amazon basin, where they can be found living along the bottom of the many streams, tributaries and flood plains.
They spend the majority of their time searching the growth along the river bottom for decaying plant matter, algae and small meaty items. They typically avoid the brightness of the midday sun by hiding under plants or driftwood, then come out at night to forage.
The Galaxy Pleco is a very peaceful species that will get along well with tropical community fish and cichlids. They will squabble with other similar sized Pleco's and bottom feeders if not given enough room to establish a suitable territory. These territorial battles tend not to be too violent; however, they should be house in an aquarium larger than 55 gallons if they are to be kept with other Pleco's or similar species.