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The peppered moray takes its name from the dense black peppering across its pale body — fine speckles that intensify with age. One of the larger Gymnothorax species at 36-48" adult size, requiring a 180+ gallon FOWLR system. Active predator with strong feeding response; accepts prepared foods readily once acclimated.
Native range: Indo-Pacific. The peppered 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: 180 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 silversides, krill, squid, chopped fish. 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: Adult large predators only: groupers, large angels, peaceful large triggers, large tangs in large systems..
Avoid: Anything under 4", small inverts, other large morays..
Not bred in captivity.
Tank outgrowth; aggression at feeding time; substrate cleanliness (large messy eater).
36-48 inches at adult size. One of the larger Gymnothorax species.
High — more aggressive than banana or whitemouth, less than dragon moray.
Coral-safe; fish-unsafe with anything small enough to swallow.
In very large systems (500+ gallons) with appropriate shark species, yes. Otherwise the moray and shark will conflict at feeding time.
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