Jewel Damselfish

🐠 Jewel Damselfish — Species Overview Scientific Name Plectroglyphidodon lacrymatus Common Names Jewel Damselfish Jewelfish Bead Damselfish Distribution Widely found across the Indo‑Pacific, including: East Africa Red Sea Indian Ocean islands Indonesia Philippines Micronesia Northern Australia Habitat Shallow coral reefs, lagoons, and reef flats Typically associated with branching corals and rubble zones Depth range: 3–20 meters 🌈 Appearance & Identification Base color: Dark brown to black Distinctive feature: Rows of iridescent blue spots across the body and face, giving the “jewel” effect Fins: Often edged with blue or pale highlights Juveniles: More vibrant, with brighter blue spotting and cleaner contrast Adult size: ~4 inches (10 cm) 🧠 Behavior & Temperament Highly territorial, especially as adults Will defend a chosen rock, coral head, or cave aggressively Best kept with: Larger semi‑aggressive fish Fast swimmers Fish that ignore damselfish posturing Not suitable for peaceful nano communities 🍽️ Diet Omnivore; feeds on: Algae Small crustaceans Zooplankton In captivity: Pellets Frozen mysis Brine Spirulina blends Occasional nori for enrichment 🧪 Care Level Hardy and beginner‑friendly in terms of survival Not beginner‑friendly socially due to aggression Excellent for: FOWLR systems Large reef tanks with robust tankmates Caution in: Small reefs Tanks with timid fish 🏠 Tank Requirements Minimum tank: 40 gallons (larger strongly preferred) Provide: Rockwork with caves Clear territories High‑flow zones Stable reef parameters: Temp: 76–80°F Salinity: 1.025–1.026 pH: 8.1–8.4 🧬 Compatibility Notes May bully: Clownfish Gobies Blennies Small wrasses Usually fine with: Tangs Larger wrasses Angels Rabbitfish Best kept solo; groups become hyper‑aggressive. 🛒 Retail Positioning for Seahorse Aquarium & Supply Great “pop of color” fish for customers with larger tanks Emphasize: Durability Striking blue iridescence Low maintenance Add caution tags: “Territorial as adults” “Not recommended for peaceful communities”