True freshwater eels?

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A couple of the worm or spaghetti eels are true freshwater and not catadromous, in addition to o the way they are finned and lacking pelvic bones they also have no gill arches, all the others are eel-like fish.
 
EVERY BODY SAYS THERE IS NO SUTCH THING AS FRESH WATER MORAYS BUT I HAVE A EEL THAT LOOKS MORAY LIKE AND I BOUGHT HIM FROM A GUY WHO HAD HIM IN A FRESH WATER TANK FOR OVER A YEAR AND IVE HAD HIM FOR ABOUT 6 MONTHS NOW

EEL.jpg
 
That's a gymnothorax tile, sold as a freshwater moray but not a true freshwater fish. You're lucky it's been this long in freshwater, they usually get fungus and die.

Do you have any salt in the water?
 
Fire eels prefer fully freshwater, they can tolerate very lightly brackish but are a FW species.
Wolverine, your eel will grow faster and be more resistant to infections if you add between 1-2 tablespoons of marine salt per 5 gallonsof water, they can go a long time in fresh but like violet gobies they do better with at least a little salt.
 
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