Can Honey Blue Eye and Neolamprologus Similis Live Together?

Honey Blue Eye is a peaceful species (2/10), while Neolamprologus Similis is moderately assertive (6/10). This notable difference means Neolamprologus Similis may occasionally assert dominance over Honey Blue Eye.

In terms of spatial distribution, Honey Blue Eye prefers the Top (Surface) and Middle (Open Water) zones, whereas Neolamprologus Similis occupies the Bottom (Substrate) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Honey Blue Eye is a known jumper, so a tight-fitting lid is essential.

The safe temperature window for both species falls between 24°C and 27°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

The pH requirements of Honey Blue Eye (4.5–7) and Neolamprologus Similis (7.8–9) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: Honey Blue Eye needs 1–8 dGH while Neolamprologus Similis requires 10–25 dGH.

To house Honey Blue Eye and Neolamprologus Similis together, plan for an aquarium of at least 40 litres with a minimum length of 45 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: Leaf Litter/Blackwater, Plants - Densely covered, Driftwood (Digestion/Hiding), Sand (Sifters), Shells (Breeding/Hiding). Meeting these requirements will help both species thrive.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Honey Blue Eye and Neolamprologus Similis 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.