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Eels

Most eels are easily kept in a large aquarium, although several species such as the blue ribbon eel should usually be avoided. With any moray eel care must be taken to secure the lid as one of the most common causes of death is escaping from the tank, and onto the floor.
| Common name | Image | Taxonomy | Reef safe | Care Level | Description | Max size |
| --- | --- | --- | --- | --- | --- | --- |
| Banded snake eel |  | Myrichthys colubrinus | No | Easy |  | 97 cm (38,2 in) |
| Banded eel |  | Echidna polyzona | No | Intermediate |  | 69 cm (27,2 in) |
| Black edge moray eel |  | Gymnothorax saxicola | No | Moderate |  | 60 cm (23,6 in) |
| Blue ribbon eel, black ribbon eel |  | Rhinomuraena quaesita | No | Difficult |  | 130 cm (51,2 in) |
| Chainlink moray eel |  | Echidna catenata | No | Easy | Can be kept with fish too small to swallow | 165 cm (65,0 in) |
| Dragon moray eel |  | Enchelycore pardalis | No | Easy | A fish eater that will eat anything it can fit in its mouth. When available is typically quite expensive | 92 cm (36,2 in) |
| Golden dwarf eel |  | Gymnothorax melatremus | Yes | Moderate | Rarely available, among the smallest of the moray eels | 26 cm (10,2 in) |
| Golden moray eel |  | Gymnothorax miliaris | May eat fish and shrimp | Easy to moderate | These fish should only be kept in fish-only tanks as any small invertebrates will be looked on as food. Keep with fish large enough not to be eaten. Feed on a diet of whitefish, cockles, cod roe, haddock and frozen foods. | 70,0 cm (27,6 in) |
| Green moray eel |  | Gymnothorax funebris | No | Difficult | Requires a 180 gallon tank with tight fitting lid. Compatible with rays, sharks, and other large fish. | 250 cm (98,4 in) |
| Jeweled moray eel |  | Muraena lentiginosa | No | Easy |  | 61 cm (24,0 in) |
| Kidako moray eel |  | Gymnothorax kidako | No | Easy |  | 91 cm (35,8 in) |
| Peppered moray |  | Gymnothorax picta | No | Moderate |  | 135 cm (53,1 in) |
| Snowflake eel |  | Echidna nebulosa | May eat shrimp if underfed | Easy | A pebble-tooth moray that generally eats crustaceans and similar. Safer in reef aquariums than other species but be prepared to remove it in case it starts to eat desired invertebrates. | 100 cm (39,4 in) |
| Spotted garden-eel |  | Taenioconger hassi | With Caution | Difficult | Rarely available, best avoided by inexperienced aquarists | 40 cm (15,7 in) |
| Spotted Snake eel |  | Myrichthys maculosus | No | Moderate | Requires at least six in of substrate | 100 cm (39,4 in) |
| Tessalata eel, or laced moray |  | Gymnothorax favagineus | No | Easy |  | 300 cm (118,1 in) |
| Yellowhead moray eel |  | Gymnothorax fimbriatus | No | Easy |  | 80 cm (31,5 in) |
| Yellow mouth moray eel |  | Gymnothorax nudivomer | No | Intermediate |  | 178 cm (70,1 in) |
| Whitemouth moray eel |  | Gymnothorax meleagris | With Caution | Intermediate |  | 120 cm (47,2 in) |
| Carpet eel-blenny |  | Congrogadus subducens | No | Easy | Actually a Dottyback, but has the body shape of an eel. | 45 cm (17,7 in) |
| Zebra moray |  | Gymnomuraena zebra | No | Easy | One of the easier moray eels to keep, is usually safe with most fish but will eat most invertebrates. | 150 cm (59,1 in) |