Borneo Sucker
The Borneo Sucker is a small hillstream loach native to fast-flowing streams on the island of Borneo, reaching about 6.5cm as an adult. Its flattened body and sucker-like underside let it cling firmly to rocks, where it grazes on algae in a way that's fascinating to watch. Calm and unhurried by nature, it holds its position confidently even in strong current. Because it comes from swift, oxygen-rich mountain streams, it needs a tank with strong water flow, high dissolved oxygen, and stable water quality, making it a fish best suited to keepers with some prior experience. Understated but full of character, it's a rewarding choice for anyone who enjoys watching a fish that behaves like a true stream dweller.
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Apply as a breederBorneo Sucker key facts
- Care level
- Intermediate
- Lifespan
- 3-5 years
- Size
- About 6.5cm
- Temperature
- 23〜25℃
- Diet
- Benthic algae, vegetable-based dried foods
- Tank
- As with others in the family, the setup assumes stacked river stones offering plenty of surfaces to cling to, with a strong current through them.
- Water Temperature & Quality
- FishBase records 23-25C in the wild. Clean, well-oxygenated water is a prerequisite.
- Tank Mates
- Because it grazes algae, it will go short of food if many competitors for the same resource are present.
- Diet & Feeding
- Its staple is presumed to be algae and micro-organisms rasped from rock. Maintain conditions in which algae grow, and supplement with vegetable-based dried foods when they run short.
- Breeding & Spawning
- Captive breeding records are scarce. Concentrate first on stable long-term keeping, with strong, stream-like flow and plenty of oxygen.
- Health & Notes
- The genus holds many close relatives and identification is not straightforward. Assume shipments may contain other species, and examine condition and form when choosing. IUCN status is Least Concern.
About Borneo Sucker
Borneo Sucker: a small hillstream loach from Borneo's mountain streams, growing to about 6.5cm. It clings to rocks and grazes algae, thriving in strong current and stable, oxygen-rich water, a good pick for intermediate keepers.
7 things to know before welcoming a Borneo Sucker
1Strong Flow and Oxygen
Coming from Borneo's fast-flowing mountain streams, this fish needs strong current and plenty of dissolved oxygen in the aquarium. Combine a powerhead or strong filter output with extra aeration to avoid low-oxygen conditions.
2Keep Water Quality Stable
This species is sensitive to shifting water conditions, so it should only be added to a fully cycled, stable tank. Keep up with regular water changes and parameter checks, and avoid sudden swings.
3Rock and Driftwood Layout
Since it flattens its body to cling to rocks, the tank should include rough-surfaced stones and driftwood that give it places to grip and rest. Arrange the layout with gaps that are still easy to clean.
4Feeding Around Algae
In the wild it grazes algae off rock surfaces, so a tank that's allowed to grow a bit of natural algae suits it well. Supplement with sinking algae wafers and keep an eye on whether it's getting enough food.
5Avoid High Temperatures
As a stream-dwelling species, it tends to prefer somewhat cooler water than a typical tropical tank. High temperatures reduce dissolved oxygen, so monitor the thermometer and set the heater with care.
6Tankmates: Keep It Peaceful
It has a calm temperament and can settle in well alongside other peaceful fish that also enjoy current. Housing it with fast, boisterous, or aggressive tankmates can make it hide more or lose out at feeding time.
7Cycle the Tank First
Before bringing one home, set up and stabilize the tank's flow, oxygen level, and water quality in advance. Confirm the filter and pump are running steadily before introduction to reduce stress from environmental change.
Frequently asked questions about Borneo Sucker
- Q.Is the Borneo Sucker suitable for beginners?
- A.It's generally considered an intermediate-level fish, since it needs strong current, high dissolved oxygen, and stable water quality. It's best kept by someone with some prior aquarium experience.
- Q.Can it be kept together with other fish?
- A.Yes, it has a calm temperament and gets along well with other peaceful fish that also like current. Be cautious combining it with aggressive or very fast-moving fish, as it may end up hiding more.
- Q.What should I feed it?
- A.In nature it grazes algae from rock surfaces, so along with any algae growing in the tank, sinking algae wafers make a good supplement. Watch its body condition to judge whether feeding amounts need adjusting.
- Q.How big does it grow?
- A.The Borneo Sucker stays fairly small, reaching about 6.5cm as an adult. There's little concern about it growing much larger, and its confident, clinging way of moving gives it plenty of presence despite its size.
- Q.Is the Borneo Sucker listed under CITES?
- A.The Borneo Sucker is not listed under CITES. Instead, focus on giving it the current and water quality a stream-dwelling fish needs.
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