Eels are one of the most fascinating fish varieties. Their elongated bodies give them a unique appearance, and there are many subspecies with special characteristics. Some eels are native to marine environments while others prosper in lakes or rivers. That’s why getting the right eel for your saltwater or freshwater tank is important. In this guide, we’ll look at some of the most popular for home aquariums.
1. Golden Dwarf Moray Eels: Small and Hardy
Most people expect moray eels to be some of the biggest tank fish. However, the golden dwarf moray is an exception because it only grows to about 12 inches. These relatively rare fish need a minimum tank size of 55 gallons. Typically, they have an intense yellow coloring that lends them their name. These moray eels are nocturnal creatures, but they may poke their heads out of their lairs during the day. They are generally a reef species, and they’re relatively hardy, so they’re perfect for saltwater tanks.
These eels are a good option for smaller aquariums because they’re not the biggest. However, be sure to have enough space because they’re sloppy eaters and will put pressure on tank filters. Eel owners need to test aquarium water regularly. Another key point is that they shouldn’t be kept with smaller fish because these eels may try to eat them. Golden dwarf moray eels are also solitary, so most owners will only keep one.
2. Peacock Eels Can Live 18 Years
The peacock eel is an intriguing freshwater fish that hails from the rivers of Southeast Asia. Technically, they’re not true eels because of their separated fins. Be wary of the sharp spines on their dorsal fins because they can hurt! Peacock eels can be a very long-term investment. They may live for up to 18 years in captivity. Peacocks also grow to between nine and twelve inches depending on the size of their tank. The minimum recommended tank size is 55 gallons. This gives them more freedom to move, which is necessary for their well-being.
Some owners think peacock eels are difficult to maintain. However, this is a misconception. They’ll tolerate a temperature range of 73°F to 82°F and pH levels of 6.5 to 7.5. These eels love burrowing so ensure there’s a good substrate in your freshwater tank. Also, additions like PVC pipes will provide more environmental enrichment. Food is the trickiest part, but they should eat brine shrimp, bloodworms, and other critters. These docile fish are great tankmates for many species. However, they’re territorial, so only keep one peacock eel.
3. Green Moray Eels Suit Experienced Aquarists
This giant saltwater eel is a magnificent fish. They’re too big for most home aquariums because they can grow up to eight feet long. This means that they would need a 125-gallon tank to live comfortably. Another issue is the amount of waste they produce. There must be enough water circulation for a healthy environment. This striking species has a long dorsal fin that runs the length of its body. They have a reputation for being fierce predators, but this is partly unfair. Green moray eels open and close their mouths to reveal their sharp teeth. However, they’re just taking in water to breathe.
Feeding green moray eels is an expensive hobby because they eat a lot. Typically, they love fish, crabs, and even octopi, so it won’t be easy to provide for one. They don’t have many predators in the wild because of their sheer size. They’re not good tankmates because they’ll eat any smaller tankmates. Another issue is that it’s very risky for humans to handle them because of their sharp teeth. It’s much better to enjoy this species in the wild or at a reputable aquarium.
4. Tire-Track Eels Can Grow 2.4 Feet
Also known as the zig-zag eel, this freshwater species grows up to 2.4 feet long. They have a relaxed temperament so it’s perfectly fine to mix them with other fish. However, they are also territorial like many eels. That’s why it’s best to keep one tire-track eel. One trait is that they’re extremely fast and may even steal food from the mouths of other fish. They also have pointed snouts, so it’s easy for them to squeeze into tight spaces.
Tire-track eels typically live in freshwater streams and marshes. They’re omnivorous, but they’re predominantly predators. These eels commonly eat krill and shrimp, so it’s easy to provide for them. Tire-track eels may survive for 18 years in captivity. A 75-gallon tank is most suitable for an adult because of its large size.
5. Fire Eels Are Relatively Peaceful
Fire eels are another incredible species with a striking appearance. The stunning markings on their body make them an eye-catching addition to any freshwater tank. These eels originate from the slow-moving rivers of Southeast Asia. They’re a large eel that grows up to almost forty inches long. A temperature range of 75 to 82°F is ideal for fire eels. They also tolerate a pH level of between 6.0 to 7.5. It’s relatively easy to feed them because they eat fish pellets and standard frozen foods. In the wild, they’ll consume smaller fish and insects.
They’re also a good community species because they’re relatively peaceful. Don’t keep them with smaller fish because they may eat them. However, they’re not naturally aggressive. Again, fire eels are a nocturnal species, so they prefer a dimly lit environment and won’t offer much activity during the day. Give them a good substrate for burrowing and plenty of places to hide.
6. Snowflake Eels Need Well-Secured Tank Lids
Snowflake eels are another popular option for saltwater aquariums. However, they’re hard work because they’re escape artists. It’s crucial to have a well-secured lid because they’ll take every opportunity to jump out of the water. They grow up to two feet long and need a 75-gallon tank. Not every fish lover will be able to care for these magnificent eels. Snowflake eels are bottom dwellers, but don’t count on them to keep your aquarium clean. Eels generally produce plenty of waste, so a good filter is essential.
Don’t keep them with crustaceans because they will eat them. However, lionfish and triggerfish are suitable tankmates. They’re usually not aggressive, but feeding time can be an exception. Experts advise a decent protein skimmer if you’re keeping them with coral. They’re very hardy so they’re a good option for new eel owners if kept appropriately.
