Dwarf gourami

Make a quiet territory, not an empty small tank

Trichogaster lalius comes from slow, vegetated environments. Seriously Fish recommends shade, hiding places and low turbulence. An open box with a single ornament does not provide the same usable territory as a planted aquarium of the same volume. Arrange vegetation so the fish can withdraw from view without losing access to food or the surface.

Our starting plan is at least 60 litres with a base of at least 60 x 30 cm for one dwarf gourami. This is a conservative editorial plan, not a measured biological minimum. The source describes a similarly sized, carefully arranged tank as only just sufficient for a pair, and also warns that males can harass females. Extra litres in a tall, narrow tank do not replace horizontal separation or cover. A community requires a new assessment of every inhabitant's space, not subtraction from a generic stocking calculator.

The published 22-27 C, pH 6.0-7.5 and GH 2-18 dGH ranges concern captive care; they are not instructions to swing the water between limits. Keep filtration running without making the entire surface turbulent. As a labyrinth fish, the gourami takes atmospheric air: leave accessible surface gaps among floating plants. Air breathing does not remove its need for suitable water quality.

One gourami is a plan; two need a reason

A dwarf gourami is not a schooling fish that must be purchased as a group. We use one as the lower-conflict starting arrangement. The species account warns against multiple males in modest aquaria and notes that even a male-female pair can have problems. Do not assume two colourful shop fish are a compatible pair, or add a female simply to absorb a male's attention.

Other labyrinth fish, including bettas, can provoke territorial conflict in a small setup. Large, fast or boisterous fish create a different problem: they can intimidate the gourami or take its food. Choose any community partners by adult size, water needs, activity and feeding behaviour, not by a "peaceful" label alone. Small animals are not automatically safe merely because the gourami is small.

The honey gourami is a different species to research as an alternative, not a second centrepiece to add automatically. If keeping a pair or community, provide separate retreats and have another suitable, established space available. Repeated chasing, injury, permanent hiding or exclusion from food calls for separation and reassessment, not waiting for a fixed observation period.

Feed the fish that hangs back

A small complete flake or pellet can be the staple, with suitably sized frozen foods for variety, consistent with the species diet account. Deliver food where the gourami is comfortable rather than only into the busiest part of the aquarium. Watch it take and swallow food; a community meal disappearing quickly may mean it received none.

Adjust the portion to the food instructions, the fish's intake and remaining waste. If faster companions intercept everything, change where food is delivered or reconsider the companions before increasing the whole tank's ration. Remove uneaten food and check water tests when intake changes. A quieter feeding spot can solve competition, but it cannot explain every loss of appetite.