Description
Purple Firefish — Nemateleotris decora Peaceful, shy dartfish. Strong jumper. Quick facts Size: 7–9 cm Temperament: Peaceful, timid Reef-safe: Yes Minimum tank: 20–30 gal / 75–115 l (single); larger for a bonded pair Cover: Tight, gap-free lid required Aquarium requirements Aquascape: Caves and overhangs for bolt-holes; open area for hovering. Water: pH 8.1–8.4, salinity 1.025–1.026, temp 24–26 °C (75–79 °F), NH3/NO2 0, NO3 <20 ppm. Flow: Low–moderate with calm zones. Lighting: Moderate; avoid sudden changes. Diet Frequency: 1–2× daily, small portions. Foods: Enriched mysis and brine shrimp, finely chopped marine meats, small marine pellets; copepods when available. Behavior and compatibility Keeping: Best singly or as a true bonded pair. Groups fight in small tanks. Tankmates: Peaceful species only. Avoid boisterous wrasses, dottybacks, large hawkfish, and aggressive clowns. Territory: Will guard a burrow; provide multiple retreats. Acclimation and care Acclimate: Slow drip 30–45 min; dim lights. Stress control: Tight lid, cover all gaps around plumbing and cables. Notes: May hide and skip meals until settled; target-feed near its retreat if needed.
