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The gold-dust moray is the smallest moray species kept in the hobby — under 16" at adult size and content in tanks as small as 40 gallons. Honey-gold body with fine darker speckles, large eyes for its size, and a peaceful, almost shy disposition. Ideal for nano reef keepers who want moray behavior at a fraction of the size and aggression cost.
Native range: Indo-Pacific (Hawaii, French Polynesia, Red Sea). The gold-dust moray is a member of the Moray (Muraenidae) family. Most specimens in the US trade are wild-caught from collection points in their native range and shipped through Indo-Pacific or Atlantic marine wholesalers. Wild-caught morays often arrive with internal parasites and shipping stress — a 4-week quarantine in a separate system with prazi and metronidazole prophylaxis is the standard reef-keeper protocol before display introduction.
Tank size: 40 gallons is the practical minimum for a single adult. Substrate should be marine sand 2-4 inches deep — fine grain to prevent abrasion. Hardscape should provide multiple cave structures, PVC pipe segments, and overhangs that allow the eel to choose its preferred resting position. Lighting can be standard reef LED; morays do not require special light spectrum. Filtration should be oversized — morays are messy eaters and produce significant nitrogenous waste. A skimmer rated for at least 1.5x the actual tank volume is the standard for moray-housing FOWLR systems.
The lid is non-negotiable. Morays are exceptionally strong jumpers and escape artists. A 1cm gap is enough for an adult specimen to find and exploit. Hood-style covers work; rimless tanks need custom acrylic or glass cut to seal completely.
Primary diet: Frozen mysis, finely chopped silversides, krill, frozen brine. Morays are obligate carnivores. Feed 2-3 times per week for adults, daily for juveniles. Use feeding tongs rather than dropping food — morays learn to associate tong tips with food and develop reliable feeding responses within 1-2 weeks. Variety matters: rotate between silversides, krill, squid, chopped scallop, and occasional whole shrimp for nutritional completeness. Avoid feeder goldfish — they carry thiaminase that destroys vitamin B1 and leads to long-term neurological problems.
Safe: Most reef fish 2"+ — clownfish pairs, gobies (larger species), wrasses, dwarf angels, smaller tangs..
Avoid: Fish under 1" (could be eaten), very small inverts, conspecific morays in tanks under 75 gallons..
Not bred in captivity.
Outcompeted at feeding by faster fish (target-feed at lights-off); jumping despite small size; refusal of large food items initially.
40 gallons is the practical minimum. They need horizontal swimming room more than gallonage.
Reef and cleanup-crew safe with most species over 1.5". Small ornamental shrimp under 1" are at risk.
10-15 years with proper care.
Less so than larger morays. Once acclimated they often emerge from cover during low-light periods and feed during daylight.
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