Can Florida Flagfish and Licorice Gourami Live Together?

Florida Flagfish is a moderately assertive species (5/10), while Licorice Gourami is peaceful (2/10). This modest difference means Florida Flagfish may occasionally assert dominance over Licorice Gourami.

Florida Flagfish and Licorice Gourami both frequent the Middle (Open Water) and 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.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion.

The safe temperature window for both species falls between 22°C and 26°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

The pH requirements of Florida Flagfish (6.5–8.5) and Licorice Gourami (3–6) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: Florida Flagfish needs 10–25 dGH while Licorice Gourami requires 0–4 dGH.

To house Florida Flagfish and Licorice Gourami together, plan for an aquarium of at least 75 litres with a minimum length of 60 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: Established Algae (Otocinclus), Plants - Densely covered, Leaf Litter/Blackwater, Plants - Floating, Driftwood (Digestion/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.

Florida Flagfish and Licorice Gourami 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.