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Background:
The Borneo Sucker, Pseudogastromyzon myersi, is a fascinating freshwater fish native to the fast-flowing streams and rivers of Borneo and surrounding regions in Southeast Asia. Known for its unique flattened body shape adapted to cling to rocks in strong currents, this species is a member of the hillstream loach family. Its appearance is captivating, with a speckled or striped pattern in shades of brown, olive, and gold that helps it blend into its natural rocky environment. Reaching a modest size of 5–6 cm, the Borneo Sucker is a peaceful bottom-dweller valued for its algae-grazing behavior and unique ecological role in aquariums.
Care Requirements:
Water Parameters:
Diet:
While primarily an algae grazer, the Borneo Sucker also benefits from a diet supplemented with sinking algae wafers, blanched vegetables like zucchini or spinach, and occasional frozen foods such as bloodworms or brine shrimp. Ensure ample biofilm and algae growth in the tank for grazing.
Tank Setup:
A tank of at least 70 liters is recommended, with a strong water current to replicate the fast-flowing streams they inhabit. Use a sandy or fine gravel substrate with plenty of smooth stones and driftwood to provide surfaces for algae growth and secure perches. Live plants like Java moss and Anubias are optional but add aesthetic and ecological value. Excellent filtration and aeration are essential to maintain high oxygen levels and pristine water conditions.
Behavior:
Borneo Suckers are peaceful and social fish that thrive in groups of 4 or more. They are bottom-dwelling and spend much of their time attached to rocks or grazing on algae. They are shy initially but become more active and confident once acclimated.
Tank Mates:
Ideal companions include small, non-aggressive fish such as White Cloud Mountain Minnows, Danios, and other hillstream loaches. Avoid housing them with large or territorial species, as the Borneo Sucker's calm demeanor makes it vulnerable to stress and competition.
Care Tips:
Maintain excellent water quality with regular water changes and robust filtration to handle their preference for pristine, oxygen-rich environments. A strong current is crucial for replicating their natural habitat, and powerheads or dedicated stream pumps can help achieve this. Keep them in groups to reduce stress and encourage natural behaviors. Ensure a steady supply of algae and biofilm to meet their dietary needs, supplementing as necessary.
The Borneo Sucker is a unique and visually interesting addition to well-maintained aquariums with strong currents. Its specialized behavior, peaceful nature, and role as an efficient algae grazer make it a favorite for aquarists seeking to recreate a riverine ecosystem or add a touch of the extraordinary to their tanks.
