FRESHWATER MORAY EEL INFORMATION PAGE

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something_fishy

Aquarium Advice Activist
Joined
Nov 19, 2002
Messages
168
Location
Ottawa, Ontario, Canada
OK, now that I've learned through massive questioning and trial and error, I am familiar with freshwater morays.

Firstly, they are not freshwater as per say. They are saltwater and the only time they are freshwater is when they spawn, they then travel back to saltwater environments. The ones you get in your lfs are young and are forced into fresh and brackish water, they would never live there in the wild until later in life.

They do get rather large (3 feet plus), but will grow relatively slowly to their environment. Recommended tank size is 20 gallon and up. I currently have one in a 15 but plan to expand to a 33 gallon. They will tolerate each other, but do better on their own, typically a lone tank species.

They do a lot better in a brackish tank setup with a specific gravity between 1.005 and 1.010. The temperature for these guys is a balmy 80 degrees. Be sure to make a cave or lair for them because they need to hide. To make a cave I used a large margarine container cut in in half with a hole in one side, I put this on the floor of the tank and buried it with gravel and put 2 large lava rocks at the entrance in the shape of a large letter "A", see picture for finished product. Make sure the canopy of the tank is very secure with no escape routes due to their remarkable escape skills. Lots of plants a must along with heavy filtration.

Tank mates include Puffers, mollies, goby's, mollies, etc...

Feeding them is a different story all together. I tried a variety of foods and feeding techniques and have learned that they will eat when good and ready. The eating habits are that of a snake. They do not need to be fed every day. Once or twice a week is sufficient. They do prefer live food so weening them off is a trick to do, try waving around bits of food on a string in front of their lair opening, they will eventually learn this and accent dead food.

Different foods are as follows
frozen krill
frozen bloodworms
Cooked cocktail shrimp
live snails
frozen silversides
live shrimp
live feeder fish (as they get larger)

What I've found they love the most is whole mussels.
Buy them at the supermarket for like .99 cents a pound and freeze them in the shell. A couple times a week, take one out and thaw it in tank water, open the shell and put the whole thing in front of the lair. This is very nutritous and provides a meal that they would normally find in their own environment.

All information is based on my personal experience. Not all may work for you. :)
 
Wow! You really did some research on this. Great info. Is there much danger of them eating tankmates?
Logan J
 
25 Kudos to Something_Fishy!

That was a great post, you did some serious research, Good Job!
 
Loganj, they will eat tankmates! I had one in a brackish community, where it ate two eletric yellow cichlids and a silver shark, all 2in or larger.
Now its in solitary confinment, a 20 gallon with minnows and glass srimp (or at least it used to).
My best luck with food has been cocktail shrimp attacked to a stick with a clamp on it.
-fishstixs05
 
Where would you buy an eel? How big would your fish need to be for the eel not to bother them? Does anyone keep american eels in freshwater communitys? I hear they are the only true freshwater eel.
 
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