Can Espei Rasbora (Lambchop Rasbora) and Giant Danio Live Together?

Espei Rasbora (Lambchop Rasbora) is a peaceful species (1/10), while Giant Danio is generally mild-mannered (3/10). This modest difference means Giant Danio may occasionally assert dominance over Espei Rasbora (Lambchop Rasbora).

Espei Rasbora (Lambchop Rasbora) and Giant Danio both frequent the Middle (Open Water) and Top (Surface) 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: Giant Danio is a known jumper, so a tight-fitting lid is essential.

The safe temperature window for both species falls between 23°C and 28°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

Both fish can tolerate a pH between 6 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–12 dGH. Regular testing will ensure conditions stay within this range.

To house Espei Rasbora (Lambchop Rasbora) and Giant Danio together, plan for an aquarium of at least 110 litres with a minimum length of 90 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Plants - Densely covered, Leaf Litter/Blackwater. Meeting these requirements will help both species thrive.

Espei Rasbora (Lambchop Rasbora) prefers Low (Still Water) flow while Giant Danio needs High (River/Stream) flow. Consider positioning filter outlets and using baffles to create zones of different current intensity within the same tank.