Pearly Jawfish

🟡 Pearly Jawfish (Opistognathus aurifrons): A charming, burrow‑dwelling reef fish known for its expressive face, pearly sheen, and comical hovering behavior. The Pearly Jawfish is a favorite among aquarists for its personality and its habit of peeking out from sandy burrows like a curious sentry. 🌈 Appearance Body color: Pale cream to light yellow with an iridescent pearly glow Head: Golden‑yellow with large, inquisitive eyes Fins: Translucent with subtle blue or green highlights Size: Up to 4 inches Distinctive trait: Oversized mouth used for burrow excavation and display behavior 🧠 Temperament & Behavior Peaceful, but territorial around its burrow Spends most of its time hovering vertically above its hole, retreating when startled Known for mouth‑brooding behavior — males protect eggs in their mouths until hatching Constantly rearranges substrate, creating a dynamic micro‑habitat 🏡 Tank Requirements Minimum tank size: 30 gallons (larger preferred for stability) Substrate: Deep sand bed (3–4 inches) for burrow building Rockwork: Securely placed to prevent collapse Lid: Essential — Pearly Jawfish are strong jumpers Water parameters: 72–78°F pH 8.1–8.4 Salinity 1.020–1.025 dKH 8–12 🍽️ Diet Carnivorous — feeds on small crustaceans and planktonic foods In captivity: Mysis shrimp Brine shrimp Finely chopped seafood Enriched frozen blends Feed 2–3 times daily near its burrow entrance 🤝 Compatibility Excellent with peaceful reef fish Avoid aggressive or bottom‑dwelling species that may invade its burrow Reef‑safe — does not harm corals or invertebrates Can coexist with other jawfish if space and substrate depth allow 💡 Why Hobbyists Love It Expressive personality and interactive behavior Adds movement and charm to reef displays Hardy and adaptable once established A perfect showpiece species for nano and mid‑size reef tanks