Can Senegal Bichir and Spotted Rubberlip Pleco (L187a) Live Together?

Senegal Bichir is a moderately assertive species (6/10), while Spotted Rubberlip Pleco (L187a) is generally mild-mannered (3/10). This modest difference means Senegal Bichir may occasionally assert dominance over Spotted Rubberlip Pleco (L187a).

Senegal Bichir and Spotted Rubberlip Pleco (L187a) both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Worth noting: Senegal Bichir is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Senegal Bichir is a known jumper, so a tight-fitting lid is essential.

There is no temperature overlap between Senegal Bichir (25–29°C) and Spotted Rubberlip Pleco (L187a) (20–24°C). This fundamental mismatch makes long-term cohabitation impractical.

Both fish can tolerate a pH between 6.5 and 7.8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–20 dGH. Regular testing will ensure conditions stay within this range.

To house Senegal Bichir and Spotted Rubberlip Pleco (L187a) together, plan for an aquarium of at least 200 litres with a minimum length of 120 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Established Algae (Otocinclus). Meeting these requirements will help both species thrive.

Senegal Bichir prefers Low (Still Water) flow while Spotted Rubberlip Pleco (L187a) needs High (River/Stream) flow. Consider positioning filter outlets and using baffles to create zones of different current intensity within the same tank.

Senegal Bichir and Spotted Rubberlip Pleco (L187a) are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.